Cr⁴⁺:YAG Passive Q-Switch Saturable Absorber Crystal, High Laser Damage Threshold & Stable Repetitive Frequency Operation
Cr 4+ :YAG crystal 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:
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Crystal structure
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Cubic system
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Lattice constant
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12.01 Å
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Melting point
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1970°C
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Moh's hardness
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8.5
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Density
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4.56g/ cm3
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Specific heat
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0.59J/g.cm 3 @0-20℃
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Coefficient of thermal expansion
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[111] Direction: 7.8×10 -6 /K@0~250℃
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