1650nm Fiber AOM Series

1650nm Fiber AOM Series

The acousto-optic modulator utilizes the acousto-optic effect to manipulate laser light by modulating its intensity and shifting its frequency. Its operating range spans visible and infrared wavelengths. Employing a robust all-metal construction and a compact, hermetically sealed package with advanced packaging technology, the modulator delivers exceptional reliability and thermal stability.

  • Short response time 
  • Low insertion loss 
  • High extinction ratio 
  • High-temperature stability and reliability  
  • Small size
  • Q-switched fiber laser 
  • Laser Doppler coherent application 
  • Ultra-fast laser frequency reduction menu 
  • Linear frequency modulation

This indicator is a typical optical wavelength indicator, and other wavelengths and frequencies can be selected.

Insertion lossdB<2.5<3<4
Rise timens<45<30<12
Shift FrequencyMHz80150200
3dB frequency shift bandwidthMHz>15>30>40
Wavelengthnm1650 (Typical value)
Optical powerW≤0.5
On-off extinction ratiodB≥50
Polarization extinction ratio (PM device)dB≥20
Polarization Dependent loss (SM device)dB<0.5
Driving powerW<2
Fiber type– 
Optical fiber connectorFC/APC
RF input jointSMA
Fiber length m>1
Input impedanceΩ50
Package FH
Package  FH
461nm fiber AOM Package FA
Package  FA
Low-power N-type acoustooptic driver

An acousto-optic driver is an electronic device that generates radio frequency (RF) signals to control acousto-optic devices, such as modulators and frequency shifters, requiring less than 3 watts of power. Piezoelectric transducers convert radio frequency electrical signals into ultrasonic signals. By adjusting the frequency and strength of the RF signal, the driver can precisely control the modulation, deflection, or tuning of the laser beam. The drive effectively dissipates heat for reliable operation, and the use of matching drives further increases temperature stability.

Supporting DriveThe model designation SGXXXX-33-N-ab provides a concise overview of its key specifications:
Function: “X” signifies its ability to shift the frequency of light, while “T” indicates its modulation capability, allowing for intensity control of the laser beam.
Operating frequency and power: “XXX” represents the specific frequency at which the driver operates, while “33” specifies the radio frequency (RF) output power.
Package type: “N” indicates the physical package style of the driver.
Power supply: “A” with options “1” and “2” correspond to power supply voltages of 24V and 12V, respectively.
Modulation type: “b” with options “D” and “A” specify whether the driver supports digital TTL modulation or analog modulation for controlling the laser beam.
  • Small size     
  • Fast response time   
  • Low power consumption  
  • High-temperature stability and reliability 
Specifications of the modulation input interface
Modulated signal inputDigital modulation (high level 3.3-5V; low level 0-0.2V@1k Ω)
Analog modulation (A1: 0-1V@50 Ω)
Analog modulation (A5: 0-5V@1k Ω)
Modulated signal input impedanceΩ
RF output interface specification
Output signal frequencyMHz80150200
Frequency stabilityppm20  ( 1 Special)
Output signal powerW<2
Rise and fall timens<25<20<10
Switching ratiodB≥60
Harmonic suppression ratiodBc>25
Signal output standing wave ratio≤1.3
Complete machine specification
Maximum power consumptionW10
Working voltageVdc24±1V(Optional 12±0.5)
Power interfaceThrough core capacitance (core wire is connected to positive, solder lug is connected to negative)
Low-power N-type acoustooptic driver Package N
Package N
Low-power N-type acoustooptic driver Package N2
Package N2