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Nd:YAG

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Nd:YAG is the earliest and most well-known laser host crystal. Since it combines obvious advantages in basic properties of laser crystal, Nd:YAG has ubiquitous presence in near-infrared solid-state lasers and their frequency-doubler, tripler, and higher order multiplier.

 

THATSHIGH Specifications for Nd:YAG Crystal

Dimension

Maximum length 200mm with tolerance ±0.5mm

Maximum diameter 20mm with tolerance ±0.05mm

Doping Concentration Nd

0.3~1.0 (±0.1) atm%

Chamfer

0.1mm @45º

Wavefront Distortion

λ/8 @633nm

Damage Threshold

>750MW/cm2

Flatness

λ/10 @633nm

Parallelism

< 10"

Perpendicularity

≤5′

Surface Quality [S/D]

10/5

Coating

HR

R>99.8% @1064nm R<5% @808nm

AR

R<0.15% @1064nm

Other HR coatings, e.g. HR@1064nm & 532nm, 946nm, 1319nm etc. are also available

 

THATSHIGH Quality Standard of Nd:YAG Crystal

Diameter (mm)

Standard Grad

Excellence Grade

Super Excellence Grade

φ3~6.35

≤ 0.5 fringes/ inch

≤ 0.25 fringes/ inch

≤ 0.1 fringes/ inch

≥ 25 dB

≥ 28 dB

≥ 30 dB

φ7~10

≤ 0.7 fringes/ inch

≤ 0.4 fringes/ inch

≤ 0.16 fringes/ inch

≥ 22 dB

≥ 25 dB

≥ 28 dB

φ11~13

≤ 1 fringes/ inch

≤ 0.6 fringes/ inch

≤ 0.2 fringes/ inch

≥ 20 dB

≥ 23 dB

≥ 26 dB

φ14~16

≤ 1.2 fringes/inch

≤ 0.8 fringes/inch

≤ 0.25 fringes/inch

≥ 18 dB

≥ 20 dB

≥ 23 dB

 

Note:
Nd:YAG rods for 946 nm or 1319 nm lasers, and higher grade or specific Nd:YAG rods or slabs can be provided. Er:YAG, Yb:YAG and other ion doped YAG crystals are also available upon request.

Keyword:
YAG rods
Laser crystal
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