Nd:Ce:YAG
 
 


Nd:Ce:YAG is an excellent laser material used for no-water cooling and miniature laser systems. 

 

   1.  Low threshold

   2. Very high slope efficiency

   3. Good anti-UV irradiation property

   4. Good thermal stability

   5. High optical quality

 

 

The Sellmeier equations (°C in µm for YAG):

n ^2 = 2.08745 + 1.2081 °C ^2 /(°C^ 2 - 0.02119 )+ 17.2049 °C ^2 /(°C ^2 - 1404.45 )

 

 

 

 

Optical and Spectral Properties

 

Dopant concentration

Nd:1.1 ~ 1.4at%,Ce:0.05 ~ 0.1at%

Laser Transition

4 F 3/2 --> 4 I 11/2

Laser Wavelength

1.064µm

Photon Energy

1.86×10 -19 J@1.064µm

Emission Linewidth

4.5Å @1.064µm

Emission Cross Section (Nd1at%)

2.7~8.8×10 -19 cm -2

Fluorescence Lifetime (Nd1at%)

230µs

Index of Refraction

1.8197@1064nm

 

 

 

Specifications

 

   Dimension Tolerances:                        +/-0.05mm

   Length Tolerance:                               +/-0.5mm 

   Orientation:                                        <111> or <100> crystalline within 5deg.

   Extinction Ratio:                                >25dB

   Surface Quality:                                 10-5 scratch/dig per MIL-O-13830A

   Parallelism:                                       <10 arc sec.

   Perpendicularity:                                <5 arc min.

   Flatness:                                          <1/10 lambda @632.8nm

   Wavefront Distortion:                         1/8 lambda per inch @ 632.8nm

   Barrel Finish:                                    50-80 RMB per inch

   Chamfer:                                          <0.1mmx45deg.

   Coating:                                           AR/AR@1064nm R<0.2%

 

 

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