Fiber-coupled AO Modulators


Brimrose all fiber optic, electronically controllable modulators allow the user to vary the output light amplitude, time duration, and periodicity/frequency. Insertion Loss can be as low as 2 dB, Extinction Ratio can be as high as -50 dB, rise times can be down to 5 nsec, periodicity can be up to several hundred MHz. Wavelengths can range from near UV to near IR.


  • Compact Size; Rugged Design
  • Low Insertion Loss
  • Fast Switching Speed
  • Hermetically Sealed
  • Low RF Drive Power
  • Stable Performance
  • Custom Configurations Available


  • TTL / Digital Amplitude Modulation
  • Analog Amplitude Modulation
  • Fiber Lasers
  • Spectroscopy
  • Loop-back Switch
  • Fast Attenuator
  • Pulse Picking, Q-Switching
  • EDFA Power Control
  • Gain Tilt Control
  • OEM Designs

Brimrose Fiber Coupled Acousto-Optic Devices


  • Frequency Ranges : as low as 40 MHz to 1GHz
  • Low Insertion Losses (~2-3 dB)
  • Fast Switching Speed < 10 nsec
  • High Extinction Ratio >50 dB or better upon request
  • Optical Power Handling – up to 5W CW
  • SM – PM Fibers – FC/APC Connectors