Nd:YAG

Nd:YAG is an earlier and 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.

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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
φ3~6.35	≥ 25 dB	≥ 28 dB	≥ 30 dB
φ7~10	≤ 0.7 fringes/ inch	≤ 0.4 fringes/ inch	≤ 0.16 fringes/ inch
φ7~10	≥ 22 dB	≥ 25 dB	≥ 28 dB
φ11~13	≤ 1 fringes/ inch	≤ 0.6 fringes/ inch	≤ 0.2 fringes/ inch
φ11~13	≥ 20 dB	≥ 23 dB	≥ 26 dB
φ14~16	≤ 1.2 fringes/inch	≤ 0.8 fringes/inch	≤ 0.25 fringes/inch
φ14~16	≥ 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.

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