Nd:YAG - Standard Specs.of Rods

Neodymium-doped Yttrium-Aluminum Garnet (Nd:YAG)

III. Standard Specifications of Laser Rods

Nd Doping Level

0.9 0.1atm% and 1.1 0.1atm%

Standard Diameter

f 2, 3, 4, ..., 10 mm; or f 1/4", 3/8"

Diameter Tolerance

1)0.02 ~ 0.05 mm; 2) +0.0/-0.02 mm

Standard Length

0.5, 1 mm; 5, 10, 30, ..., 150 mm; or 2", 3", 4", 6"

Length Tolerance

0.2 ~ 0.5 mm

Orientation

<111> crystalline direction (<5^o)

Bubbles, inclusions and scatteringsites when viewed in white, focused illuminator light andunder crossed polarizers

Free of imperfections visible to naked eye

Wavefront Distortion

0.25 ~ 0.5 fringes/inch (according to actual sizes)

Scratch/Dig Code

10/5 per MIL-O-13830A

Barrel Finish

50-80 micro-inch (grooved-barrel also available)

Flatness

l/10 @633 nm

Parallelism

< 10 arc seconds

Perpendicularity

< 2 arc minutes

Coating Types

I) S1 - HR @1.064 mm & HT @0.808 mm (*)

II)S1 - HR @1.064&0.532 mm & HT @0.808 mm (*)

III)S1 - AR @1.064 mm & HT @0.808 mm (*)

IV) Both ends AR @1.064 mm (*)

V) Other kinds of AR, HR coatings upon requests

*I) R_{1.064 mm}>99.8%, T_{0.808 mm}>97%

*II) R_{1.064 mm}>99.8%, R_{0.532 mm}> 99.6%, T_{0.808 mm}>95%

*III) R_{1.064 mm}<0.2%, R_{0.808 mm}<0.5%

*IV) R_{1.064 mm}<0.1% per surface