807.5nm Laser Crystals Grooved Nd Yag Laser Rods With Good Beam Quality

Name: 807.5nm Laser Crystals Grooved Nd Yag Laser Rods With Good Beam Quality
Brand: Wuhan Star Optic Technology Co., Ltd

Price Negotiable

Price: Negotiable

MOQ: 1pc

Delivery Time: Negotiable

Brand: STAR OPTIC

Product Description

Laser Crystal Grooved Nd:YAG

Overview:

The grooved Nd:YAG laser rods have the improvements on the beam quality, thermal effect reduction and the efficiency when compared with the common Nd:YAG laser rods.

General Specifications Of Grooved Nd:YAG:

Nd Dopant Level	0.5-1.1 atm%
Orientation	<111> crystalline direction (±0.5deg)
Dimension Tolerances	Diameter: ±0.05mm
Dimension Tolerances	Length: ±0.5mm
Surface Quality	10/5 Scratch and Dig
Clear Aperture	>90%
Surface Flatness	<λ/10@633nm
Wavefront Distortion	<λ/8@633nm
Parallelism	<10 arc seconds
Perpendicularity	<5 arc minutes
Chamfer	<0.1mmx45°
AR Coating	Reflectivity R<0.25%@1064 nm per surface Damage threshold over 750MW/cm2@1064nm, 10 ns and 10 Hz Other coating is per your request
Extinction Ratio	Rods with diameter from 3 mm to 6.35 mm and with length to 100 mm: >30dB Rods with diameter from 7 mm to 10 mm and with length to 100 mm: >28dB

Physical Properties of Grooved Nd:YAG:

Chemical Formula	Nd:Y3Al5O12
Crystal Structure	Cubic
Lattice Constants	12.01
Concentration	~1.2 x 10²⁰ cm^-3
Melting Point	1970℃
Density	4.56 g/cm³
Mohs Hardness	8.5
Refractive Index	1.82
Thermal Conductivity	14 W/m /K @20℃, 10.5 W /m /K @100℃
Thermal Expansion Coefficient	7.8 x 10^-6/K [111], 0 - 250℃

Optical Properties of Grooved Nd:YAG:

Lasing Wavelengths	1064nm
Photon Energy	1.86x10^-19J@1064nm
Stimulated Emission Cross-Section	2.8x10^-19cm²
Relaxation Time of Terminal Lasing Level	30ns
Radiative Lifetime	550us
Spontaneous Fluorescence	230us
Loss Coefficient	0.003 cm^-1@1064nm
Pump Wavelength	807.5 nm
Absorption band at pump wavelength	1nm
Linewidth	0.6nm
Polarized Emission	Unpolarized
Thermal Birefringence	High