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Acousto-Optic Modulators (AOM)

Acousto-optic Modulators

An external cavity device that modulates the intensity of the laser

Acousto-optic modulators (AOM) are generally used outside the laser cavity to change the intensity of the incoming laser (amplitude-modulated AM). This can be simple ON/OFF modulation for quick switching or variable level modulation to achieve intensity modulation. The modulation mode is determined by the type of RF driver and can be digital (ON/OFF) or analog (sinusoidal, square wave, linear, random…). 


Generally, the RF driver of AOM adopts fixed frequency, the key parameter of the AOM is the rise/fall time, which defines the achievable “speed” or amplitude modulation bandwidth of the modulation. The rise/fall time is proportional to the beam diameter inside the modulator. Therefore, the diameter of the incident laser beam must be controlled in order to obtain a fast rise time. The AOM can be used as a shutter (cyclic switch at a set frequency) or as a variable attenuator (dynamically controlling the intensity of the transmitted light). Laser modulation is achieved by controlling the sound wave in the acousto-optic crystal caused by radio frequency.


SIMTRUM offers a series of free-space (up to 24 channels in a single channel) and fiber-coupled (bias-preserving and non-bias-preserving) AOM with a frequency range of up to 300 MHz and a rise as low as 6 ns. We provide AOM-matched series of RF drivers you can choose the corresponding RF driver according to the product specification.


AO Free-Space Modulators



AO Fiber-Coupled Modulators


Product Brochure Link:  



Principle of Operation


Applications 

AO Free-Space Modulators

Intensity modulation

- Laser radar

- Laser switch

- Chopper

- Laser precision machining



AO Fiber-Coupled Modulators

Industrial lasers

- Sensing

- Scientific research

- Telecommunications

- Quantum technology






Product specifications


AO Free-Space Modulators

General Specifications

Interaction MaterialCrystalline Quartz / Tellurium Dioxide / Germanium
Acoustic ModeLongitudinal
Operating Wavelength266 nm ~ 10.6 um
PolarizationLinear, parallel to base
Transmission> 93% ~ 99.6%
Active Aperture0.5 ~ 8.0 mm
Center Frequency (Fc)40.68 ~ 200 MHz
RF Bandwidth (RB)5 ~ 15 MHz
Diffraction Efficiency @RB> 80% ~ 85%
RF Power2 ~ 80 W (Max)
Input Impedance50Ω Nominal
VSWR @Fc< 1.2:1 / < 3:1
RF ConnectorSMA-F / BNC-F
CoolingConduction-cooled / Water-cooled
Shell MaterialAluminum alloy 6063



Ordering Information




Selection Guide


Product CodeWavelengthActive ApertureOperting FrequencyRise Time

Optical

 Material

Cooling
STM0012-QL200-035-266266 nm3.5 mm200 MHz>85%Crystalline quartzConduction-cooled
STM0011-QL110-060-343343 nm6.0 mm110 MHz>85%Crystalline quartzWater-cooled
STM0009-QL170-060-355355 nm6.0 mm170 MHz>85%Crystalline quartzWater-cooled
STM0006-QL110-030-532532 nm3.0 mm110 MHz>85%Crystalline quartzConduction-cooled
STM0010-TL080-020-450-900450-900 nm2.0 mm80 MHz>85%Tellurium dioxideConduction-cooled
STM0015-QL100-030-800800 nm3.0 mm100 MHz>85%Crystalline quartzConduction-cooled
STM0005-TL080-005-10451045 nm0.5 mm80 MHz>85%Tellurium dioxideConduction-cooled
STM0007-QL068-030-10641064 nm3.0 mm68 MHz>85%Crystalline quartzConduction-cooled
STM0008-GL041-060-96009.6 um6.0 mm40.68 MHz >80%GermaniumWater-cooled
STM0013-GL041-080-96009.6 um8.0 mm40.68 MHz>80%GermaniumWater-cooled
STM0001-GL041-080-1060010.6 um8.0 mm40.68 MHz>80%GermaniumWater-cooled



Product specifications


AO Fiber-Coupled Modulators

General Specifications

Interaction MaterialTellurium Dioxide
Acoustic ModeLongitudinal
Operating Wavelength780 ~ 1550 nm
Fiber Type780-HP / PM780 / PM980 / PM1550XP
Average Optical Power Handing1 W
Center Frequency (Fc)40 ~ 300 MHz
RF Bandwidth (RB)5 ~ 15 MHz
Fiber Length> 0.8 m
Fiber TerminationBare Fiber
RF Power2 ~ 2.5 W (Max)
Input Impedance50Ω Nominal
VSWR @Fc< 1.2:1
RF ConnectorSMA-F
CoolingConduction-cooled
Shell MaterialAluminum alloy 6063


Ordering Information




Selection Guide


Product CodeWavelengthOperting FrequencyFiber TypeRise TimeInsertion Loss
STFM0010-TL080-P16-780780 nm80 MHzPM780≤ 50 ns≤ 3 dB
STFM0011-TL200-P16-780780 nm200 MHzPM780≤ 50 ns≤ 3 dB
STFM0018-TL200-F23-910-940910- 940 nm200 MHz780-HP≤ 10 ns≤ 3.5 dB
STFM0017-TL200-P07-10301030 nm200 MHzPM980≤ 10 ns≤ 2.5 dB
STFM0005-TL200-P07-10641064 nm200 MHzPM980≤ 10 ns≤ 2.5 dB
STFM0008-TL250-P01-10641064 nm250 MHzPM980≤ 8 ns≤ 2.5 dB
STFM0009-TL300-P01-10641064 nm300 MHzPM980≤ 6 ns≤ 3 dB
STFM0001-TL040-P02-15501550 nm40 MHzPM1550XP≤ 60 ns≤ 2.5 dB
STFM0013-TL080-P02-15501550 nm80 MHzPM1550XP≤ 60 ns≤ 2.5 dB
STFM0007-TL200-P03-15501550 nm200 MHzPM1550XP ≤ 10 ns≤ 3 dB



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Compare Model Drawings & Specs Availability Reference Price
(USD)
STM0012-QL200-035-266
Acousto-Optic Free-space Modulators (AOM), wavelength 266nm, active aperture 3.5mm, operating frequency 200MHz, rise time >85%, Crystalline quartz, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STM0011-QL110-060-343
Acousto-Optic Free-space Modulators (AOM), wavelength 343nm, active aperture 6.0mm, operating frequency 110MHz, rise time >85%, Crystalline quartz, water-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STM0009-QL170-060-355
Acousto-Optic Free-space Modulators (AOM), wavelength 355nm, active aperture 6.0mm, operating frequency 170MHz, rise time >85%, Crystalline quartz, water-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STM0006-QL110-030-532
Acousto-Optic Free-space Modulators (AOM), wavelength 532nm, active aperture 3.0mm, operating frequency 110MHz, rise time >85%, Crystalline quartz, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STM0010-TL080-020-450-900
Acousto-Optic Free-space Modulators (AOM), wavelength 450-900nm, active aperture 2.0mm, operating frequency 80MHz, rise time >85%, Tellurium dioxide, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STM0015-QL100-030-800
Acousto-Optic Free-space Modulators (AOM), wavelength 800nm, active aperture 3.0mm, operating frequency 100MHz, rise time >85%, Crystalline quartz, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STM0005-TL080-005-1045
Acousto-Optic Free-space Modulators (AOM), wavelength 1045nm, active aperture 0.5mm, operating frequency 800MHz, rise time >85%, Tellurium dioxide, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STM0007-QL068-030-1064
Acousto-Optic Free-space Modulators (AOM), wavelength 1064nm, active aperture 3.0mm, operating frequency 68MHz, rise time >85%, Crystalline quartz, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STM0008-GL041-060-9600
Acousto-Optic Free-space Modulators (AOM), wavelength 9.6um, active aperture 6.0mm, operating frequency 40.68MHz, rise time >80%, Germanium, water-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STM0013-GL041-080-9600
Acousto-Optic Free-space Modulators (AOM), wavelength 9.6um, active aperture 8.0mm, operating frequency 40.68MHz, rise time >80%, Germanium, water-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STM0001-GL041-080-10600
Acousto-Optic Free-space Modulators (AOM), wavelength 10.6um, active aperture 8.0mm, operating frequency 40.68MHz, rise time >80%, Germanium, water-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFM0010-TL080-P16-780
Acousto-Optic Fiber-Coupled Modulators (AOM), wavelength 780nm, operating frequency 80MHz, Fiber type PM780, rise time ≤ 50ns, insertion loss ≤3dB, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFM0011-TL200-P16-780
Acousto-Optic Fiber-Coupled Modulators (AOM), wavelength 780nm, operating frequency 200MHz, Fiber type PM780, rise time ≤ 50ns, insertion loss ≤3dB, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFM0018-TL200-F23-910-940
Acousto-Optic Fiber-Coupled Modulators (AOM), wavelength 910-940nm, operating frequency 200MHz, Fiber type 780-HP, rise time ≤ 10ns, insertion loss ≤3.5dB, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFM0017-TL200-P07-1030
Acousto-Optic Fiber-Coupled Modulators (AOM), wavelength 1030nm, operating frequency 200MHz, Fiber type PM980, rise time ≤ 10ns, insertion loss ≤2.5dB, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFM0005-TL200-P07-1064
Acousto-Optic Fiber-Coupled Modulators (AOM), wavelength 10640nm, operating frequency 200MHz, Fiber type PM980, rise time ≤ 10ns, insertion loss ≤2.5dB, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFM0008-TL250-P01-1064
Acousto-Optic Fiber-Coupled Modulators (AOM), wavelength 1064nm, operating frequency 250MHz, Fiber type PM980, rise time ≤ 8ns, insertion loss ≤2.5dB, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFM0009-TL300-P01-1064
Acousto-Optic Fiber-Coupled Modulators (AOM), wavelength1064nm, operating frequency 300MHz, Fiber type PM980, rise time ≤ 6ns, insertion loss ≤3dB, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFM0001-TL040-P02-1550
Acousto-Optic Fiber-Coupled Modulators (AOM), wavelength 1550nm, operating frequency 40MHz, Fiber type PM1550XP, rise time ≤ 60ns, insertion loss ≤2.5dB, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFM0013-TL080-P02-1550
Acousto-Optic Fiber-Coupled Modulators (AOM), wavelength 1550nm, operating frequency 80MHz, Fiber type PM1550XP, rise time ≤ 60ns, insertion loss ≤2.5dB, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFM0007-TL200-P03-1550
Acousto-Optic Fiber-Coupled Modulators (AOM), wavelength 1550nm, operating frequency 200MHz, Fiber type PM1550XP, rise time ≤ 10ns, insertion loss ≤3dB, provide AOM-matched RF driver
4-6 Weeks Request for quote

STFM0007-TL200-P03-1550 - Parameter

STFM0013-TL080-P02-1550 - Parameter

STFM0001-TL040-P02-1550 - Parameter

STFM0009-TL300-P01-1064 - Parameter

STFM0008-TL250-P01-1064 - Parameter

STFM0005-TL200-P07-1064 - Parameter

STFM0017-TL200-P07-1030 - Parameter

STFM0018-TL200-F23-910-940 - Parameter

STFM0011-TL200-P16-780 - Parameter

STFM0010-TL080-P16-780 - Parameter

STM0001-GL041-080-10600  - Parameter

STM0013-GL041-080-9600 - Parameter

STM0008-GL041-060-9600 - Parameter

STM0007-QL068-030-1064 - Parameter

STM0005-TL080-005-1045 - Parameter

STM0015-QL100-030-800 - Parameter

STM0010-TL080-020-450-900 - Parameter

STM0006-QL110-030-532 - Parameter

STM0009-QL170-060-355 - Parameter

STM0011-QL110-060-343 - Parameter

STM0012-QL200-035-266 - Parameter

STFM0007-TL200-P03-1550 - Download

STFM0013-TL080-P02-1550 - Download

STFM0001-TL040-P02-1550 - Download

STFM0009-TL300-P01-1064 - Download

STFM0008-TL250-P01-1064 - Download

STFM0005-TL200-P07-1064 - Download

STFM0017-TL200-P07-1030 - Download

STFM0018-TL200-F23-910-940 - Download

STFM0011-TL200-P16-780 - Download

STFM0010-TL080-P16-780 - Download

STM0001-GL041-080-10600  - Download

STM0013-GL041-080-9600 - Download

STM0008-GL041-060-9600 - Download

STM0007-QL068-030-1064 - Download

STM0005-TL080-005-1045 - Download

STM0015-QL100-030-800 - Download

STM0010-TL080-020-450-900 - Download

STM0006-QL110-030-532 - Download

STM0009-QL170-060-355 - Download

STM0011-QL110-060-343 - Download

STM0012-QL200-035-266 - Download

Accessories

Compare Model Drawings & Specs Availability Reference Price
(USD)