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Er:YAG
Product Information :

 

Advantage:

Very high slope efficiency

Operates well at room temperature

Operate in a relatively eye-safe wavelength range

Basic Properties:
Crystal Structure  Cubic 
Lattice Parameters  12.01 Å 
Melting Point  1970°
Moh Hardness  8.5
Density  4.56?.04g/cm 3 
Specific Heat (0-20)  0.59J/g.cm 3 
Modulus of Elasticity  310GPa 
Young's Modulus  3.17X10 4 Kg/mm 2 
Poisson Ratio  0.3(est.) 
Tensile Strength  0.13~0.26GPa 

 

Optical and Spectral Properties:

Dopant concentration  Er: ~50 at% 
Laser Transition Transition  4 I 11/2 to 4 I 13/2 to 4 I 13/2 
Laser Wavelength  2940nm 
Photon Energy  6.75?0 -20 J(@2940nm) 
Emission Cross Section  3?0 -20 cm 2 
Index of Refraction  1.79 @2940nm 
Pump Bands  600~800 nm 

 
Specifications:
Orientation:  <111> or <100]> crystalline within 5?SPAN style="mso-spacerun: yes"> 
Wavefront distortion :  ?/8 per inch @ 633 nm 
Extinction Ratio:  >25dB 
Dimension Tolerances  Rods with diameter: ?.025 mm , Length: ?.5 mm 
Surface quality:  10/5 Scratch / Digper MIL-O-1380A 
Parallelism:  < 10 arc seconds 
Perpendicularity:  < 5 arc minutes 
Flatness:  <?/10 @ 633 nm 
chamfer:  <0.1 mm @ 45deg. 
Barrel Finish:  ground or polished
AR Coating Reflectivity  R< 0.25% 
 

Other specifications are available as the requirements of customers.

 
 
 
 
 


   
   
 
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