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Acousto-Optic Modulators

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  • Acousto-Optic Modulators

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Product description：

Acousto-optic modulators (AOM) can be used like a shutter (cycling light on and off at a set frequency), or as a variable attenuator (controlling the intensity of transmitted light dynamically). This product only presents 1st order diffracted light under the interaction of Bragg diffraction.

According to the types of structure, CASTECH‘s acousto-optic modulators can be divided into free-space AOM and fiber-coupled AOM.

CASTECH optimizes the design of modulators in accordance with the requested speed, wavelength, beam diameter, contrast ratio to offer the best solution for customers. Combined with our competencies of process technology, we are able to offer AOM with LIDT over 1GW/cm2 and low scatter. The connector of the fiber-coupled AOM fiber tail can be adopted by bare fiber, FC/PC or FC/APC.

 

Applications：

● Laser marking

● Lithography

● Material processing

● Medical surgery

● Micromachining

 

Iintroduction：

Free-space
Interaction material Crystal quartz TeO2
Wavelength 300 - 400  nm,400 - 540 nm,1030 - 1064 nm or other 1064 nm
Damage threshold ＞1 GW/cm² ＞1GW/cm²
AR coating reflection ＜0.2% per surface ＜0.2% per surface
Transmission（Single pass） ≥99.6% ≥97.0%
RF frequency 40 MHz/80 MHz/100 MHz or other 200,250 MHz
Polarization Linear, vertical to base Random
Aperture 2-3.0 mm or other 0.18 mm
Acoustic mode Compressional Compressional
Rise time 113 ns/mm ＜120 ns/mm
Diffraction efficiency ≥ 85 % or other ≥70 %
RF power 5,10,25 W or other 2.5 W
RF connector SMA-F or other SMA
RF line length 200 mm or other \
Cooling Conduction-cooled Conduction-cooled
Shell material Aluminum alloy 6061 Aluminum alloy 6061
Storage temperature -20~70 ℃ -20℃~70℃

 

Fiber-coupled
Interaction material TeO2
Wavelength 1030-1080 nm or other
RF frequency 100/120/200MHz or other
Insertion loss ≤1.5dB or other
Extinction ratio ≥45 dB or other
Rise time ＜50 ns
Optical power Handling（MAX） 3 W or other
RF power 2 ,2.5W or other
RF connector SMA-F
Fiber type 10/125 SC ,PM980 or other
Fiber length 1 m or other
Fiber termination Bare fiber or FC/APC
VSWR ≤1.2
Cooling Conduction-cooled
Shell material Aluminum alloy 6061
Storage temperature -20~70 ℃

 

CAOM-f-a-mt -w-c-h
RF（f） Aperture（a） Material（m） Mode（t） Wavelength（w） Connector（c） Housing（h）
100 1 mm Tellurium Dioxide Compressional 1064 nm SMA A66
3 mm Tellurium Dioxide Compressional 300 - 400 nm SMA A05
200 MHz 0.18 mm Tellurium Dioxide Compressional 1064 nm SMA A29
250 MHz 0.18 mm Tellurium Dioxide Compressional 1064 nm SMA A29
40.68 MHz 2.5 mm Crystalline Quartz Compressional 1030 - 1064 nm SMA A03
80 MHz 2 mm Tellurium Dioxide Compressional 400 - 540 nm SMA A05
2 mm Crystalline Quartz Compressional 1030 - 1064 nm SMA A03

 

CAFA-f-r-p-mat-w-c-h
RF（f） RF Range（r） Power（p） Material（m） Fiber Type（a） Fiber Terminal（t） Wavelength（w） Connector（c） Housing（h）
100 / 2.5 Tellurium dioxide HI 1060 Bare fiber 1064\1550 SMA A87
120 / 2.5 Tellurium dioxide PM980 FC/PC 1064\1550 SMA A87
200 / 2.5 Tellurium dioxide PM10/125   1064\1550 SMA A50
        SC10/125        
        DCG10/125        
        GSF10/125        
        PM1550XP        
        PM1060        
        SM28        

 

CAFA-f-r-p-mat-w-c-h
RF（f） RF Range（r） Power（p） Material（m） Fiber Type（a） Fiber Terminal（t） Wavelength（w） Connector（c） Housing（h）
100 / 2.5 Tellurium dioxide HI 1060 Bare fiber 1064\1550 SMA A87
120 / 2.5 Tellurium dioxide PM980 FC/PC 1064\1550 SMA A87
200 / 2.5 Tellurium dioxide PM10/125   1064\1550 SMA A50
        SC10/125        
        DCG10/125        
        GSF10/125        
        PM1550XP        
        PM1060        
        SM28        

 

Product Number** RF(f) Aperture(a) Material(m) Mode(t) Wavelength(w) Connector(c) Housing(h)
CAOM-f-a-mt -w-c-h 68MHz
80MHz
100 MHz
120 MHz
150 MHz
200 MHz
250 MHz
...		 ≤3 mm CQ
(Crystalline Quartz)

TE
(TeO2)		 C
(Compressional)		 355nm
532nm
1064nm
...		 SMA
SMC
…		 A03
A04
A13
...

 

Product Number** RF(f) RF Range (r) Power (p) Material(m) Fiber Type (a)  Fiber Terminal (t) Wavelength (w) Connector(c) Housing (h)
CAFA-f-r-p-mat-w-c-h 100 MHz
120 MHz
150 MHz
200 MHz
250 MHz
...		 / ≤2.5 W TE
(TeO2)		 1
(HI1060)
2
(PM980)
3
(PM 10/125)
...		  B
(Bare Fiber)
F
(FC/PC)		 1030nm
1064nm
...		 SMA
...		 A46
A50
...

 

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