399nm Space AOM  Series

397nm Space AOM  Series

Acousto optic modulator is a kind of photoelectric product that uses the principle of acousto-optic interaction to modulate the laser intensity and shift the frequency. Its rate control and modulated light intensity far exceed the mechanical shutter. The wavelength range is from the ultraviolet region to the mid-infrared region. The use of the recommended supporting driver can achieve the best performance and more application options.

  • Fast modulation speed 
  • High diffraction efficiency
  • High-temperature stability and reliability  
  • Small size
  • Lidar 
  • Material processing 
  • Laser Doppler system 
  • Image processing 
  • Cold atomic physics

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

Wavelengthnm397 (Typical value)
Polarization state of input lightlinear polarization(⊥)arbitrarily
Center frequencyMHz130100200300
Diffraction efficiency%≥80≥85≥85≥85
Frequency shift bandwidthMHz30205060
Optical aperturemm110.50.2
Diffraction light separation anglemrad9171928.4
Drive powerW≤4≤1.5
Rise time of light pulsens/mm120160
Damage thresholdW/mm2100.1
Static transmissivity%9590
Extinction ratio>1000:1
RF connectorSMA
Input impedanceΩ50
Cooling modeConduction cooling
Material Sciencequartztellurium oxide
399 nm space AOM series Package TA
Package  TA
Package QP1
Package QP1
Low-power N-type acoustooptic driver

A typical RF driver comprises an RF oscillator, a modulation circuit, and a power amplifier. It produces RF signals utilized for generating sound waves within the crystals of the AO device. The modulation and strength of the RF signal dictate the extent of modulation, deflection, or tuning of the beam. This acousto-optic driver enables both digital and analog modulation of the beam, along with frequency shifting capabilities. With efficient heat dissipation and reliable performance, the driver ensures stability when paired with compatible acousto-optic devices.

Supporting DriveModel (SGXXXX-33-N-ab): For the frequency shift function, designate “Y,” and for the modulation function, designate “T.” In the code, “XXX” represents the operating frequency, where “33” corresponds to RF output power. The “N” signifies the package type. Regarding power supply voltage, use “1” for 24V and “2” for 12V. Lastly, for modulation, use “D” for digital TTL modulation and “A” for analog modulation.
  • Small size     
  • Fast response time   
  • Low power consumption  
  • High-temperature stability and reliability 
ItemUnitSpecifications of the modulation input interface
Specifications of 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)
RF output interface specification
Output signal frequencyMHz130180200300
Frequency stabilityppm100  ( 1 Special)
Rise and fall timens<25<25<10<7
Output signal powerW<2
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