{"id":1622,"date":"2020-07-28T09:44:00","date_gmt":"2020-07-28T09:44:00","guid":{"rendered":"https:\/\/www.szlaser.com\/?page_id=1622"},"modified":"2023-06-08T14:33:09","modified_gmt":"2023-06-08T14:33:09","slug":"laser-crystal","status":"publish","type":"page","link":"https:\/\/www.szlaser.com\/index.php\/laser-crystal\/","title":{"rendered":"Laser Crystals"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1331.2px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 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style=\"--awb-bg-size:cover;--awb-width-large:25%;--awb-margin-top-large:0px;--awb-spacing-right-large:7.68%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:7.68%;--awb-width-medium:25%;--awb-order-medium:0;--awb-spacing-right-medium:7.68%;--awb-spacing-left-medium:7.68%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-reading-box-container reading-box-container-1\" style=\"--awb-title-color:#212934;--awb-margin-top:0px;--awb-margin-bottom:20px;\"><div class=\"reading-box reading-box-center\" style=\"background-color:#f9f9fb;border-width:1px;border-color:rgba(226,226,226,0);border-left-width:3px;border-left-color:var(--primary_color);border-style:solid;\"><h2>NdYAG<\/h2><div class=\"reading-box-description fusion-reading-box-additional\">808nm to 1064nm \n<\/div><div class=\"reading-box-additional\">\n<p>(532nm along with KTP)<\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><a class=\"button fusion-button button-default fusion-button-small button-small button-flat fusion-mobile-button continue-center\" style=\"-webkit-box-shadow:none;-moz-box-shadow:none;box-shadow:none;border-radius:5px 5px 5px 5px\" href=\"https:\/\/www.szlaser.com\/index.php\/laser-crystal\/nd-yag\/\" target=\"_self\"><span>Product Page<\/span><\/a><\/div><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-1 fusion_builder_column_inner_1_4 1_4 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:25%;--awb-margin-top-large:0px;--awb-spacing-right-large:7.68%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:7.68%;--awb-width-medium:25%;--awb-order-medium:0;--awb-spacing-right-medium:7.68%;--awb-spacing-left-medium:7.68%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-reading-box-container reading-box-container-2\" style=\"--awb-title-color:#212934;--awb-margin-top:0px;--awb-margin-bottom:20px;\"><div class=\"reading-box reading-box-center\" style=\"background-color:#f9f9fb;border-width:1px;border-color:rgba(226,226,226,0);border-left-width:3px;border-left-color:var(--primary_color);border-style:solid;\"><h2>NdYVO4<\/h2><div class=\"reading-box-description fusion-reading-box-additional\">808nm to 1064nm \n<\/div><div class=\"reading-box-additional\">\n<p>More efficient than NdYAG<\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><a class=\"button fusion-button button-default fusion-button-small button-small button-flat fusion-mobile-button continue-center\" style=\"-webkit-box-shadow:none;-moz-box-shadow:none;box-shadow:none;border-radius:5px 5px 5px 5px\" href=\"https:\/\/www.szlaser.com\/index.php\/laser-crystal\/ndyvo4\/\" target=\"_self\"><span>Product Page<\/span><\/a><\/div><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-2 fusion_builder_column_inner_1_4 1_4 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:25%;--awb-margin-top-large:0px;--awb-spacing-right-large:7.68%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:7.68%;--awb-width-medium:25%;--awb-order-medium:0;--awb-spacing-right-medium:7.68%;--awb-spacing-left-medium:7.68%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-reading-box-container reading-box-container-3\" style=\"--awb-title-color:#212934;--awb-margin-top:0px;--awb-margin-bottom:20px;\"><div class=\"reading-box reading-box-center\" style=\"background-color:#f9f9fb;border-width:1px;border-color:rgba(226,226,226,0);border-left-width:3px;border-left-color:var(--primary_color);border-style:solid;\"><h2>KTP<\/h2><div class=\"reading-box-description fusion-reading-box-additional\">Convert 1064nm to 532nm<\/div><div class=\"reading-box-additional\">\n<p>Economic Nonlinear Crystal<\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><a class=\"button fusion-button button-default fusion-button-small button-small button-flat fusion-mobile-button continue-center\" style=\"-webkit-box-shadow:none;-moz-box-shadow:none;box-shadow:none;border-radius:5px 5px 5px 5px\" href=\"https:\/\/www.szlaser.com\/index.php\/nonlinear-crystals\/ktp\/\" target=\"_self\"><span>Product Page<\/span><\/a><\/div><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-3 fusion_builder_column_inner_1_4 1_4 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:25%;--awb-margin-top-large:0px;--awb-spacing-right-large:7.68%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:7.68%;--awb-width-medium:25%;--awb-order-medium:0;--awb-spacing-right-medium:7.68%;--awb-spacing-left-medium:7.68%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-reading-box-container reading-box-container-4\" style=\"--awb-title-color:#212934;--awb-margin-top:0px;--awb-margin-bottom:20px;\"><div class=\"reading-box reading-box-center\" style=\"background-color:#f9f9fb;border-width:1px;border-color:rgba(226,226,226,0);border-left-width:3px;border-left-color:var(--primary_color);border-style:solid;\"><h2>CrYAG<\/h2><div class=\"reading-box-description fusion-reading-box-additional\">Passive Qswitch<\/div><div class=\"reading-box-additional\">\n<p>Sauterable Absorber<\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><a class=\"button fusion-button button-default fusion-button-small button-small button-flat fusion-mobile-button continue-center\" style=\"-webkit-box-shadow:none;-moz-box-shadow:none;box-shadow:none;border-radius:5px 5px 5px 5px\" href=\"https:\/\/www.szlaser.com\/index.php\/laser-crystal\/cr4yag-crystals\/\" target=\"_self\"><span>Product Page<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-one\"><h1 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:32;line-height:1.3;\">What is Laser Crystal?<\/h1><\/div><div class=\"fusion-text fusion-text-2\"><p><span style=\"font-weight: 400;\">Laser crystals are optical crystals that are doped with laser-active ions and used as gain media for solid-state lasers. They can convert the energy supplied from the outside into highly parallel and monochromatic laser beams with spatial and temporal coherence. Laser crystals have different characteristics and properties depending on the type of dopant and host crystal. Some of the most common types of laser crystals are Nd:YAG, Yb:YAG, Ti:sapphire, Er:YAG, Nd:YLF, Nd:YVO4, etc. These laser crystals have different absorption and emission wavelengths, typical power ranges, and applications. The following table summarizes some of these parameters for some common laser crystals.<\/span><\/p>\n<\/div><div class=\"fusion-text fusion-text-3\"><table class=\" aligncenter\" cellspacing=\"15\" cellpadding=\"10\">\n<tbody>\n<tr>\n<td><b>Laser crystal<\/b><\/td>\n<td><b>Absorption wavelength<\/b><\/td>\n<td><b>Emission wavelength<\/b><\/td>\n<td><b>Typical power range<\/b><\/td>\n<td><b>Application<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Nd:YAG<\/span><\/td>\n<td><span style=\"font-weight: 400;\">808 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1064 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">10 W &#8211; 10 kW<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Material processing, medical lasers, LIDAR<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Yb:YAG<\/span><\/td>\n<td><span style=\"font-weight: 400;\">940 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1030 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">10 W &#8211; 100 kW<\/span><\/td>\n<td><span style=\"font-weight: 400;\">High power lasers, ultrafast lasers<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Ti:sapphire<\/span><\/td>\n<td><span style=\"font-weight: 400;\">450 &#8211; 600 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">650 &#8211; 1100 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">&lt; 10 W<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ultrafast lasers, tunable lasers<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Er:YAG<\/span><\/td>\n<td><span style=\"font-weight: 400;\">940 &#8211; 980 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2940 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">&lt; 100 W<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Medical lasers, dentistry<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Nd:YLF<\/span><\/td>\n<td><span style=\"font-weight: 400;\">792 &#8211; 808 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1047 nm or 1053 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">&lt; 10 W<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ultrafast lasers, Q-switched lasers<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Nd:YVO4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">808 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1064 nm or 1342 nm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">&lt; 100 W<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Diode-pumped lasers, frequency-doubled lasers<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><div class=\"fusion-image-element \" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"1200\" height=\"800\" alt=\"Common Laser Wavelength and Gain Medium\" title=\"Common Laser Wavelength and Gain Medium\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2023\/04\/Common-Laser-Wavelength-and-Gain-Medium.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2023\/04\/Common-Laser-Wavelength-and-Gain-Medium.png\" class=\"lazyload img-responsive wp-image-12682\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271200%27%20height%3D%27800%27%20viewBox%3D%270%200%201200%20800%27%3E%3Crect%20width%3D%271200%27%20height%3D%27800%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2023\/04\/Common-Laser-Wavelength-and-Gain-Medium-200x133.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2023\/04\/Common-Laser-Wavelength-and-Gain-Medium-400x267.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2023\/04\/Common-Laser-Wavelength-and-Gain-Medium-600x400.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2023\/04\/Common-Laser-Wavelength-and-Gain-Medium-800x533.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2023\/04\/Common-Laser-Wavelength-and-Gain-Medium.png 1200w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 640px) 100vw, 1200px\" \/><\/span><\/div><div class=\"fusion-video fusion-youtube\" style=\"--awb-max-width:600px;--awb-max-height:360px;--awb-align-self:flex-start;--awb-width:100%;\"><div class=\"video-shortcode\"><div class=\"fluid-width-video-wrapper\" style=\"padding-top:60%;\" ><iframe class=\"lazyload\" title=\"YouTube video player 1\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27360%27%20viewBox%3D%270%200%20600%20360%27%3E%3Crect%20width%3D%27600%27%20height%3D%27360%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-orig-src=\"https:\/\/www.youtube.com\/embed\/XiZTF_zhTh0?wmode=transparent&autoplay=0\" width=\"600\" height=\"360\" allowfullscreen allow=\"autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture;\"><\/iframe><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1331.2px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-two\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:28;line-height:1.3;\">Major Properties of Laser Crystals<\/h2><\/div><div class=\"fusion-text fusion-text-4\"><p><span style=\"font-weight: 400;\">Laser crystals have several characteristics and properties that determine their performance and suitability for different laser applications. Some of these characteristics and properties are:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Doping: Laser crystals are doped with laser-active ions that provide the energy levels for optical transitions and stimulated emission. The type and concentration of dopant ions affect the absorption and emission wavelengths, the cross-sections, the quantum efficiency, the fluorescence lifetime, the saturation intensity, and the thermal loading of the laser crystal. For example, Nd:YAG is doped with neodymium ions that emit at 1064 nm with a high cross-section and a long lifetime, while Yb:YAG is doped with ytterbium ions that emit at 1030 nm with a lower cross-section but a higher quantum efficiency and a lower thermal loading.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Host crystal: Laser crystals are based on host crystals that provide the structural and optical properties of the gain medium. The host crystal affects the thermal conductivity, the refractive index, the birefringence, the mechanical strength, the chemical stability, and the crystal growth of the laser crystal. For example, YAG is a garnet host crystal that has a high thermal conductivity, a low refractive index, a cubic symmetry (no birefringence), a high mechanical strength, a good chemical stability, and a relatively easy crystal growth, while YLF is a fluoride host crystal that has a lower thermal conductivity, a higher refractive index, a tetragonal symmetry (birefringence), a lower mechanical strength, a poorer chemical stability, and a more difficult crystal growth.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Geometry: Laser crystals can have different geometries depending on the shape and size of the crystal. The geometry affects the mode structure, the beam quality, the output power, the efficiency, and the thermal management of the laser. For example, rod-shaped laser crystals are commonly used for high-power lasers with good beam quality and mode control, while thin-disk laser crystals are used for ultra-high-power lasers with high efficiency and thermal management.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">These characteristics and properties of laser crystals influence the design and optimization of laser systems for various applications. By choosing the appropriate laser crystal for a specific application, one can achieve better performance and reliability of the laser system.<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-3 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1331.2px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-text fusion-title-size-two\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:28;line-height:1.3;\">PROs and CONs of using Laser Crystal as Gain Medium<\/h2><\/div><div class=\"fusion-text fusion-text-5\"><p>Pros of using laser crystals as gain medium:<\/p>\n<ul>\n<li>Laser crystals have high transition cross sections, which means they have a high probability of absorption or stimulated emission. This leads to high optical gain and high energy conversion efficiency.<\/li>\n<li>Laser crystals have high thermal conductivity, which means they can dissipate heat better and reduce thermal effects such as thermal lensing, thermal stress, and thermal expansion. This leads to better beam quality and stability.<\/li>\n<li>Laser crystals have narrow absorption and emission bandwidths, which means they can produce monochromatic and coherent light beams with low noise and high spectral purity. This leads to better performance in applications that require high precision and resolution.<\/li>\n<\/ul>\n<p>Cons of using laser crystals as gain medium:<\/p>\n<ul>\n<li>Laser crystals have low repetition rates, which means they can only produce pulsed lasers with low average power. This limits their applications in high-power and continuous-wave lasers.<\/li>\n<li>Laser crystals have complex operation, which means they require careful alignment, cooling, pumping, and mode control. This increases the cost and difficulty of laser systems based on laser crystals.<\/li>\n<li>Laser crystals have limited tunability, which means they can only produce light at fixed wavelengths determined by the dopant ions and host crystals. This limits their applications in tunable lasers and broadband lasers.<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-4 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1331.2px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-4 fusion-sep-none fusion-title-text fusion-title-size-two\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:28;line-height:1.3;\">Comparing of Different Types Lasers<\/h2><\/div><div class=\"fusion-text fusion-text-6\"><table class=\" aligncenter\" cellspacing=\"15\" cellpadding=\"5\">\n<tbody>\n<tr>\n<td><b>Type of laser<\/b><\/td>\n<td><b>Gain medium<\/b><\/td>\n<td><b>Pump source<\/b><\/td>\n<td><b>Wavelength range<\/b><\/td>\n<td><b>Typical power<\/b><\/td>\n<td><b>Pros and cons<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Gas laser<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Gas (e.g., CO2, He-Ne, Ar, Kr, Xe)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Electrical discharge or optical pumping<\/span><\/td>\n<td><span style=\"font-weight: 400;\">UV to IR<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1 mW to 100 kW<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Pros: High beam quality, long coherence length, wide wavelength range. Cons: Large size, high power consumption, gas leakage, alignment issues.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Solid-state laser<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Solid (e.g., ruby, Nd:YAG, Ti:sapphire)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Flash lamp or laser diode<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Visible to IR<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1 mW to 10 MW<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Pros: High peak power, high energy conversion efficiency, compact size. Cons: Low repetition rate, high cooling requirement, thermal lensing.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Fiber laser<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Optical fiber doped with rare-earth ions (e.g., Yb, Er, Nd)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Laser diode or pump laser<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Near-IR<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1 mW to 100 kW<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Pros: High power conversion efficiency, high quantum efficiency, low thermal distortion, flexible delivery. Cons: Nonlinear effects, pump coupling loss, fiber damage.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Liquid laser (dye laser)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Organic dye solution<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Pump laser or flash lamp<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Visible to near-IR<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1 mW to 1 kW<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Pros: Tunable wavelength, high pulse energy, broad gain bandwidth. Cons: Low quantum efficiency, short dye lifetime, complex operation.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Semiconductor laser (laser diode)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Semiconductor p-n junction (e.g., GaAs, InGaAs)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Electrical current<\/span><\/td>\n<td><span style=\"font-weight: 400;\">UV to IR<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1 mW to 10 W<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Pros: Low cost, high power conversion efficiency, compact size, direct modulation. Cons: Low beam quality, temperature sensitivity, short coherence length.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-1622","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v18.7 (Yoast SEO v25.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Laser Crystals - SZLASER<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.szlaser.com\/index.php\/laser-crystal\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Laser Crystals\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.szlaser.com\/index.php\/laser-crystal\/\" \/>\n<meta property=\"og:site_name\" content=\"SZLASER\" \/>\n<meta property=\"article:modified_time\" content=\"2023-06-08T14:33:09+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.szlaser.com\/index.php\/laser-crystal\/\",\"url\":\"https:\/\/www.szlaser.com\/index.php\/laser-crystal\/\",\"name\":\"Laser Crystals - 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