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Cr4+:YAG (Y3Al5O12)
is an excellent crystal for passively
Q-switching diode pumped or lamp-pumped Nd:YAG, N:YLF, Nd:YVO4
or other Nd and Yb doped lasers at wavelength from 0.8 to 1.2m m.
Because of its high damage threshold (< 500 MW/cm2) and
being easy to be operated, it will replace LiF and Dye which are
commonly used as passive Q-switching materials.
We provide Cr4+:YAG with Cr4+
doping level from 0.5mol% to 3mol%. The size could be from 2´ 2mm2
to 14´ 14 mm2 with length from 0.1mm to12mm available. We
can control the initial transmission from 1% to 99% according to
customers’ requirements.
The preliminary experiments of our Cr:YAG showed that
the pulse width of passively Q-switched lasers could be as short as
5ns for diode pumped Nd:YAG lasers and repetition as high as 10kHz for
diode pumped Nd:YV04 lasers. Furthermore, an efficient
green output @ 532nm, and UV output @ 355nm and 266nm were generated,
after a subsequent intracavity SHG in KTP or LBO, THG and 4HG in LBO
and BBO for diode pumped and passive Q-switched Nd:YAG and Nd:YVO4
lasers.
Cr:YAG is also a laser crystal with tunable output from
1.35 m m to 1.55 m m. It can generate ultrashort pulse laser (to fs
pulsed) when pumped by Nd:YAG laser at 1.064 mm.
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Basic
Properties of Cr4+YAG |
Formula:Cr4+:Y3Al5O12
Crystal Structure: Cubic Garnet
Density: 4.56 g/cm3
Hardness: 8.5 (Mohs)
Damage Threshold: > 500 MW/cm2
Refractive Index: 1.82 @ 1064nm
Thermal Conductivity: 12.13 w/m/k |
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Main Specifications |
Flatness: < l /8
Wavefront Distortion: < l /4
Parallelism: < 30”
AR-Coating: R < 0.2% @ 1064 nm |
When ordering Cr4+:YAG crystal, Please
specify the size, initial transmission and coatings. For further
information, please contact us.
New!
Cr4+:YAG crystal has been demonstrated as a
Self-Pumped Phase-conjugate Mirror in a Nanosecond Nd:YAG high power
loop resonator. It compensates not only for phase aberrations, but
also for polarization aberrations induced into the loop resonator.
Cr:YAG crystal Q-switching for Nd:YAG Laser
Cr:YAG Tunable Laser crystal
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