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Acousto-Optic Q-Switches

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Product description:

The acousto-optic Q-switch (AOQS) is a special modulator that designed for generation of high intensity pulsed light. It can diffract a portion of the laser out from the cavity (Raman Nath or Bragg regime) when it applied the RF signal. it increases the cavity losses and prevents oscillation. When the RF signal is switched off, the cavity losses decrease rapidly and it will produce the evolves of intense laser pulse.

CASTECH offers a variety of A-O Q-switches working at the wavelength ranged from 355nm to 2000nm. Our products are characterized with ultra-low loss (transmission up to 99.6%), high switching speeds, excellent pulse-to-pulse stability and high power resistant.

In order to maintain high diffraction efficiency, higher RF powers may be necessary and therefore requires adequate conduction or water cooling.

 

Applications:

● Laser marking

● Lithography

● Pulse picker

● Material processing

● Medical surgery

● Beam chopper

● Optical power stabilizer

 

Iintroduction:

Interaction material Fused Silica\Crystal quartz Crystal quartz
Wavelength 1030\1064 nm 1030\1064\1342 nm
Damage threshold >1GW/cm² >1GW/cm²
AR coating reflection <0.5% per surface <0.2% per surface
Transmission(Single pass) ≥99.6% ≥99.6%
RF frequency 24\27.12\40.68\80 MHz 40.68\68\80\ MHz
Polarization Random Linear, vertical to base
Aperture 2.0,3.0, 4.0, 5.0, 6.0 mm 0.7,0.8,1.0,1.2,1.5,2.0,2.5,3.0 mm
Acoustic mode Compressional Compressional
Loss Modulation ≥ 60% ≥85%
RF power 50 W 20 W
RF connector BNC SMA-M
Cooling Water-cooled Conduction-cooled
Shell material Aluminum alloy 6061 Aluminum alloy 6061
Storage temperature -20℃~70℃ -20~70 ℃
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We could not find any corresponding parameters, please add them to the properties table
CAQS-f-a-mt-w-c-h
RF(f) Aperture(a) Material(m) Mode(t) Wavelength(w) Connector(c) Housing(h)
24 MHz,27.12 MHz 1-8 mm Crystalline Quartz Compressional 1064 nm SMA-BNC A08
24 MHz,27.12 MHz,40.68 MHz,68 MHz 1-8 mm Fused Silica Compressional 1064 nm SMA-BNC
1-8 mm Fused Silica Compressional 1064 nm SMA-BNC
27.12 MHz 1-4 mm Fused Silica Compressional 1550 nm SMA-BNC
40.68 MHz 1.5 mm Crystalline Quartz Compressional 1064 nm SMA A01
A02
A03
1-2 mm Crystalline Quartz Compressional 1900 - 2100 nm SMA
1-2 mm Crystalline Quartz Compressional 2100 nm SMA
68 MHz 1-4 mm Crystalline Quartz Compressional 1064 nm SMA A03
80 MHz 1 mm Crystalline Quartz Compressional 1319, 1342nm SMA A01
A03
1-4 mm Crystalline Quartz Compressional 1064 nm SMA
1 mm Crystalline Quartz Compressional 1030 - 1064 nm SMA
0.5 mm Crystalline Quartz Compressional 1064 nm SMA

 

CAQBS-f-a-mt-w-c-h
RF(f) Aperture(a) Material(m) Mode(t) Wavelength(w) Connector(c) Housing(h)
27.12 MHz 2.5 mm Crystalline quartz Compressional 1064nm BNC A21

 

CAQSD-f-a-mt-w-c-h
RF(f) Aperture(a) Material(m) Mode(t) Wavelength(w) Connector(c) Housing(h)
27.12 MHz 3 Fused silica Compressional 1064nm BNC A80

 

Product Number** RF(f) Aperture(a) Material(m) Mode(t) Wavelength(w) Connector(c) Housing(h)
CAQS-f-a-mt-w-c-h
CAQBS-f-a-mt-w-c-h
CAQSD-f-a-mt-w-c-h
27.12 MHz 1-8 mm FS
(Fused Silica)
C
(Compressional)
1030nm
1064nm
...
BNC A08,...
A01,A02,...
40.68 MHz
CQ
(Crystalline Quartz)
1030~1064nm
1312~1342nm
1800~1100nm
...
SMA,BNC,
MMCX,…
A05,...
68 MHz 1-6 mm
A01,A02,...
DF
(Dense Flint)
1030-1064nm,... SMA,BNC,…
80 MHz
A09,...

 

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