Crystal

Laser Crystal

                           

Nd:YVO4

Features:
 Low lasing threshold and high slope efficiency
 High absorption over a wide pumping wavelength bandwidth
 Large stimulated emission cross-section at lasing wavelength
 Optically uniaxial and large birefringence emits polarized laser


Specifications

 Name  Nd:YVO4
 Nd: Dopant Level (atm% )

 0.1 % - 3.0 %

 Wavefront Distortion

 < l/8 at 633 nm

 Scattering Sites

 invisible, probed with a He-Ne laser

 Orientation

 ±0.5 deg.

 Dimensional Tolerance

 ±0.1 mm

 End-faces Configuration

 Plano/Plano

 Surface quality  10/5 Scratch/Dig per MIL-O-13830B

 Flatness

 l/10 at 633 nm

 Clear Aperture

 > Central 90%

 Parallelism

 < 10 arc sec.

 Intrinsic Loss

 < 0.1% cm-1

The size,  wavelength and coating are available upon request.






Nd-YAG Crystal

Features:
 Low Loss at 1.06 mm, High Optical Quality
 Good Mechanical and Thermal Properties
 High Gain, Low Threshold, High Efficiency


Specifications

Name
 Nd-YAG

Doping(atm%):

0.9%~ 1.1%

Orientation:

crystalline direction

Wavefront distortion:

l/8 per inch @ 633 nm

Extinction Ratio:

>28dB

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

Clear Aperture:

>90%

Flatness:

<l/10 @ 633 nm

chamfer:

<0.1 mm @ 45 deg.

Barrel Finish:

50-80 micro-inch (RMS) ,

The size,  wavelength and coating are available upon request.






Nd:GdV04 

Features:
 larger absorption and emission cross section
 high thermal conductivity.
 high slope efficiency or optical conversion efficiency
 good physical and mechanical properties



Specifications

 Name  Nd:GdV04
 Nd: Doping(atm%):

 0.1%~3 %

 Wavefront Distortion

 < l/8 at 633 nm

 Scattering Sites

 invisible, probed with a He-Ne laser

 Orientation

 +/-0.5degree

 Dimensional Tolerance

 +0.1/-0.1mm

 Surface quality

 10/5 Scratch/Dig per MIL-O-13830B

 Flatness

 l/10 at 633 nm

 Clear Aperture

 > Central 90%

 Parallelism

 < 10 arc sec.


The size,  wavelength and coating are available upon request.

Q-switch Crystal

Cr:YAG

Features:

 Ideal material for passive Q-switching lasers
 high damage threshold of 500-1000 MW/cm2
 outstandingly suited to replace LiF and Dye which are commonly used for passive Q-switching
 low cost and reduced system size and weight




Specifications

 Name  Cr:YAG
 Formula

 Cr4+:Y3Al5O12

 Crystal Structure

 Cubic Garnet

 Dopant Level

 0.5 mol% ~ 3 mol%

 Thermal conductivity [W/m/K]

 12.13

 Hardness

 8.5 (Mohs)

 Damage Threshold

 > 500 MW/cm2

 Refractive Index

 1.82 @ 1064 nm


The size,  wavelength and coating are available upon request.

Nonlinear Crystal

Nonliner Crystal-LBO

Features:
 broad transparency range from 160nm to 2600nm
 relatively large effective SHG coefficient (about three times that of KDP)
 high damage threshold
 wide acceptance angle and small walk-off
 type I and type II non-critical phase matching (NCPM) in a wide wavelength range
 spectral NCPM near 1300nm




Specifications

 Name  LBO
 Crystal structure

 Orthorhombic, Space group Pna21, Point group mm2

 Lattice parameter

 a=8.4473, b=7.3788,c=5.1395,Z=2

 Melting point

 About 834℃

 Mohs hardness

 6

 Density

 2.47 g/cm3

 Thermal conductivity

 3.5W/m/K

 Thermal Expansion coefficient

 ax=10.8x10-5/K, ay= -8.8x10-5/K, az=3.4x10-5/K

 Angle tolerance  6.54mrad-cm(ф, Type I,1064 SHG)
  7.5°C-cm(Type II,1064 SHG)




Nonliner Crystal-KTP 

Features:      
 Large nonlinear optical coefficient
  Wide angular bandwidth and small walk-off angle
 Broad temperature and spectral bandwidth

 High electro-optic coefficient and low dielectric constant

  Nonhydroscopic, chemically and mechanically stable




Specifications

 Name  KTP
 Transmitting wavefront distortion

 less than l/4 @ 633 nm

 Dimension tolerance

 (W ± 0.1 mm) x (H ± 0.1 mm) x (L + 0.2 mm/-0.1 mm)

 Clear aperture

 > 90% central area

 Flatness

 1/8 @ 633 nm

 Scratch/Dig code

 10/5 to MIL-O-13830A

 Parallelism

 better than 20 arc seconds

 Perpendicularity

 5 arc minutes

 Angle tolerance  Dθ < ±0.5°, Dф < ± 0.5°
 Chip  ≤0.1 mm






Nonliner Crystal-BBO 

Features:
 Broad phase matchable range from 409.6 nm to 3500 nm
 Wide transmission region from 190 nm to 3500 nm
 Large effective second-harmonic-generation (SHG) coefficient
  High damage threshold, wide temperature-bandwidth of about 55°C




Specifications

 Name  BBO

 Wavefront distortion

 less than l/8 @ 633 nm

 Dimension tolerance

 (W ± 0.1 mm) x (H ± 0.1 mm) x (L + 0.2 mm/-0.1 mm)

 Clear aperture

 > 90% central area

 Flatness

 l/8 @ 633 nm

 Scratch/Dig code

 10/5 to MIL-O-13830A

 Parallelism

 better than 20 arc seconds

 Perpendicularity

 5 arc minutes

 Angle tolerance

 Dθ < ± 0.3°, Dф< ±0.3°


The size,  wavelength and coating are available upon request.

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