Excellent Cr 4+: YAG Passive Q-Switched Crystal Widely Used in 1μ M Neodymium and Ytterbium Lasers

Product Description

Cr 4+ :YAG
Cr 4+ :YAGcrystal is excellent passive Q-switched crystal widely used in 1μm neodymium and ytterbium lasers. It has the characteristics of high output efficiency of Q switch and suitable for repetitive frequency work. It has a high resistance to photodamage threshold, is more stable and durable than dyes and color center saturable absorbers, and can replace electro-optic Q switches to output high-power laser pulses in some cases.
Chromium doped yttrium aluminum garnet (Cr 4+ : YAG) Cr: Y 3 Al 5 O 12 crystal It is suitable for Q switch, diode pumping, Nd:YAG, Nd:YLF, Nd:YVO 4 pumping lamps and others Lasers with a wavelength of 0.8~1.2um doped with Nd or Yb.
Main features:
High chemical stability and reliability
long life
Good thermal conductivity
High damage threshold (>500MW/cm 2 )
Available as a high power, solid state and compact passive Q-switched switch
easy to operate
Material properties:

Crystal structure	Cubic system
Lattice constant	12.01 Å
Melting point	1970°C
Moh's hardness	8.5
Density	4.56g/ cm3
Specific heat	0.59J/g.cm 3 @0-20ºC
Coefficient of thermal expansion	[111] Direction: 7.8×10 -6 /K@0~250ºC

Product parameters:

Orientation	<111>, <100>±5°
Initial absorption coefficient	0.5~6cm -1 @1064nm
Initial transmittance	5%~95% @1064nm
Component size	Diameter: 3~20mm; Length*Width: 3×3~20×20mm
Dimensional tolerance	Diameter: 0/-0.05mm, Length: ±0.5mm
Cylindrical processing	fine grinding
Parallelism of end faces	≤30"
Flatness of end face	λ/8 @632.8nm
Surface Quality	20-10 (MIL-O-13830A)
AR Coating Reflectance	≤0.25% @1064nm
Coating anti-laser damage threshold	≥500MW/ cm2