GSTECH
News Center
15
2025
-
05
What is a laser crystal?
Laser crystals are special optical materials and the core working substance of solid-state lasers. Their main function is to amplify optical signals through stimulated emission, thereby producing laser beams with high brightness, high monochromaticity, and high coherence. Laser crystals are usually composed of a host crystal and activator ions. Activator ions are usually doped rare earth elements (such as neodymium, erbium, ytterbium, etc.) or transition metal ions (such as titanium, chromium, etc.). These ions are embedded in the host crystal to form doped laser crystals or self-activated laser crystals.
The main characteristics of laser crystals include:
Gain characteristics: Laser crystals have a high transition cross-section, enabling them to effectively absorb pump light and amplify laser signals.
Physical characteristics: Laser crystals are usually single-crystal structures with high thermal conductivity, thermal stability, and mechanical stability, suitable for operation under high peak power and large pulse energy conditions.
Optical characteristics: Laser crystals can produce laser output at specific wavelengths through the stimulated emission process of activator ions. Their emission wavelength range is wide, from visible light to infrared light.
Diversity: There are many types of laser crystals, common ones include Nd:YAG (neodymium-doped yttrium aluminum garnet), Nd:YVO4 (neodymium-doped yttrium orthovanadate), Ti:YAG (titanium-doped yttrium aluminum garnet), etc., each crystal is suitable for different application fields.
Different application fields
Laser crystals have a wide range of applications, including industrial processing (such as cutting and welding), medical surgery (such as ophthalmic treatment), scientific research (such as spectral analysis), military (such as radar systems), and some equipment in daily life (such as laser printers and barcode scanners).
Laser crystals are indispensable core components of solid-state lasers, and their performance directly affects the output power, wavelength range, and beam quality of the laser. With the development of technology, the research and application of laser crystals are constantly expanding, and more high-performance and multifunctional new laser crystals may emerge in the future.
Next:
News
2025-05-15
How to maintain laser crystals
Maintaining laser crystals is an important task aimed at extending their lifespan and preserving their performance.
2025-05-15
Precautions for using laser crystals
Laser crystals are prone to condensation in high-humidity environments, which can lead to reduced power or damage to the laser system.
2025-05-15
Technical requirements for laser crystals
The technical requirements for laser crystals involve multiple aspects, including optical properties, physicochemical properties
2025-05-15
What are the raw materials for laser crystals?
Laser crystals mainly consist of two parts: host crystals and activator ions.
2025-05-15
Laser crystal production process
Laser crystals come in a wide variety of materials, including titanium sapphire, chromium-doped sapphire, and neodymium-doped glass