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ND ND YAG LASER ROD ND YAG sapphire Laser

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Nd:YLF Laser Crystal

Nd: YLF crystals using the Czochralski method. The use of high-quality starting materials for crystal growth, whole boule interferometry

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Description

Nd:YLF Laser Crystal
Nd: YLF crystals using the Czochralski method. The use of high-quality starting materials for crystal growth, whole boule interferometry, and precise inspection of scattering particles in crystal using He-Ne laser assures that each crystal will perform well.

Main features:
Wide wavelength coverage: 500nm-3000nm
Large crystal size
High coating threshold
Good uniformity

Standard Specification of Nd: YLF rod

Nd doping concentration	0.5-1.5% ±0.1 at % of specified amount
Nd doping concentration	(1.0 @ % standard with up to 2.0 @ % available)
Laser wavelength	1053, 1047, and 1313nm
Transmitted wavefront distortion	> λ/4 per inch of rod length (λ= 632 nm) standard
extinction ratio	25 dB minimum
Orientation of rod crystal axis	within 5’’ of the crystal “a” axis

Specification

Diameter tolerance	+.000”/-.002”
Length tolerance	+.040”/-.000”
Rod end polishing surface	λ/10
End face parallelism	Within 10 arc seconds
End face perpendicularity	Within 5 arc minutes
Chamfer	0.005” ± 0.003” x 45°
Surface finish	10-5 scratch-dig per MIL-O-1 3830A
Rod OD	Fine ground to 25 ± 5 µinches
Standard coating (high reflection & partial reflection)	Anti-Reflection where R <0.25%
	Durability per MIL-C-48497
	Damage Threshold exceeds 10 J/cm2

Application fields:
medical care/Industry/military/Scientific research laser market

Nd: YLF advantages
1. High power, low beam divergence, single-mode effective operation
2. High average power Q-switched laser
3. Linearly polarized light output, Q-switched laser, and frequency doubling
4. The potential uniform mode is for large diameter rods and strips
5. The product of stimulated emission cross-section and energy level lifetime is conducive to low CW threshold
6. The output of 1053nm matches the gain peak of Nd: glass and can be used as a preamplifier

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