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Er:YAG is an excellent laser crystal which lasers at 2.94¦Ìm. It has wide applications in medical laser systems, and others.

Very high slope efficiency.
Operates well at room temperature.
Operate in a relatively eye-safe wavelength range.

Specification
Orientation: <111> or <100> crystalline within 5°
Wavefront distortion: l/8 per inch @ 633 nm
Extinction Ratio: >25dB
Dimension Tolerances:
   Rods with diameter: +/-0.025 mm , Length: +/-0.5 mm
Surface quality: 10/5 Scratch / Dig per MIL-O-1380A
Parallelism: < 10 arc seconds
Perpendicularity: < 5 arc minutes
Flatness: < l /10 @ 633 nm
Chamfer: <0.1 mm @ 45deg
Barrel Finish: 50-80 micro-inch (RMS)
AR Coating Reflectivity: < 0.25%

Note: The other specification and dimension is available too

 

Nd:YVO4 is one of the most efficient laser host crystal currently existing for diode laser-pumped solid-state lasers.
Nd:YVO4 is an excellent crystal for high power, stable and cost dpss laser.

Low lasing threshold and high slope efficiency
Large stimulated emission cross-section at lasing wavelength
High absorption over a wide pumping wavelength bandwidth
Optically uniaxial and large birefringence emits polarized laser
Low dependency on pumping wavelength and tend to single mode output

Specification
Nd: Dopant Level: 0.1 - 3.0 atm%
Wavefront Distortion: < l/8 @ 633 nm
Orientation: +/-0.5deg
Dimensional Tolerance: +/-0.1mm
Surface quality: 10/5 Scratch/Dig per MIL-O-13830B
Flatness: l/10 @ 633 nm
Clear Aperture: > Central 90%
Parallelism: < 10 arc sec
Intrinsic Loss: < 0.1% cm-1
Note: Other specifications of Nd:YVO4 crystals and coatings            are also available upon request

 

Diffusion bonding crystals These Diffusion Bonded composite crystals are used to effectively decrease heat effect of Solid-State High-Power Laser.

High damage threshold
Improve beam quality
Decrease thermal effect
Improve efficiency
Compact size

Composite laser rod is a crystal consisting of two, three or more parts with different dopant level. Usually, doped and undoped material used.

Dopant level and rod configuration can vary as well as the number of parts. It can have different wedged structure, Brewster angles, etc.

Specification
Nd:YVO4 Doping: 0.2-3%
Nd:YAG Doping: 0.5-1.1%
Wavefront Distortion: <l /8 @ 633 nm
Orientation: +/-0.5°
Dimensional Tolerance: +/- 0.1mm
Surface quality: 10/5 Scratch/Dig per MIL-O-13830B
Flatness: Flatness: l /10 @ 633 nm
Clear Aperture: > Central 90%
Parallelism: < 10 arc sec
Intrinsic Loss: < 0.1% cm -1
Coating: AR or HR coating

 

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