OST Photonics Nd: YAG Laser Crystals

Orientation:

<111>,<100>,<110>crystalline direction

Wavefront Distortion:

λ/10 per inch @ 632.8 nm

Dimension Tolerances：

rods with diameter: +0.0/-0.05 mm , Length: ±0.1 mm

Surface Quality:

10/5 Scratch/Dig MIL-O-1380A

Parallelism:

< 10″

Perpendicularity:

< 5′

Clear Aperture:

> 90%

Surface Flatness:

< λ/10 @ 632.8 nm

Chamfer:

< 0.1 mm @ 45o

Barrel Finish

50-80 micro-inch (RMS),

Size

Upon customer request

Coating

AR/HR/PR coating upon customer’s request

Damage Threshold

750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz

Quality Warranty Period

One year under proper use

Crystal Structure:

Cubic

Lattice Constant:

12.01Å

Melting Point:

1970°C

Density:

4.5g/cm3

Refractive Index

1.82

Thermal Expansion Coefficient:

7.8x10-6 /K<111>

Thermal Conductivity（w/m/k）:

14, 20℃
10.5, 100℃

Mohs Hardness:

8.5

Stimulated Emission Cross-Section:

2.8x10-19 cm-2

Relaxation Time of Terminal Lasing Level:

30ns

Radiative Lifetime:

550 us

Spontaneous Fluorescence:

230 us

Linewidth:

0.6nm

Pump Wavelength:

807.5nm

Polarized Emission:

Unpolarized

Thermal Birefringence

High

Pump Wavelength Absorption Band:

1nm

Loss Coefficient:

0.003cm-1@1064nm