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900nm - 980nm Fiber-Coupled AOM
200 MHz RF Frequency
Acousto-Optic Fiber Modulator

  • 940nm 200 MHz Fiber-Coupled Optical Modulator
  • Acousto-Optic Modulator AOM Performance

sku / item#: 940AOM-2 / FIBER-OPTIC-AOM
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Key Features
  • High Efficiency 200 MHz Optical Modulator
  • 900nm - 980nm Operating Wavelength
  • High First-Order Extinction Ratio > 50 dB
  • Offered by AeroDIODE, a Laser Lab Source Marketplace Seller
  • Sold & Supported in North America by: LaserDiodeSource.com, part of the
    Laser Lab Source Marketplace Group

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Purchase the Recommended
200 MHz Analog RF Driver
for this Fiber-Coupled AOM

Analog RF Driver

Purchase the Recommended
200 MHz Digital RF Driver
for this Fiber-Coupled AOM

Digital RF Driver

Purchase the Recommended
200 MHz Analog / Digital RF Driver
for this Fiber-Coupled AOM

Analog / Digital RF Driver

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PRICE $2695.00
General Specifications
  • Wavelength Range: 900nm - 980nm
  • Max. Avg. Power: 3 Watt
  • Insertion Loss: 2 dB – 3 dB (2.5 dB typ)
  • Extinction Ratio, First Order: 50 dB (On / Off)
  • Return Loss (RF On): < 40 dB
  • Rise Time: 9.5 ns (max)
  • Frequency: 200 MHz
  • Frequency Shift: ±200 MHz
  • RF Power: 2.5 W (max)
  • Input Impedance: 50 Ω
  • Electrical Interface: SMA
  • Fiber Type: PM 780
  • Fiber Length: 1 m
  • Fiber Termination: FC/APC
  • Working Temperature: -20ºC to 60ºC
  • Storage Temperature: -30ºC to 70ºC
  • Dimension: 67 mm x 23 mm x 15 mm (not counting fiber boots)
  • Mounting Holes Diameter: 3 mm

Product Overview:

940nm Fiber AOM Overview

These high-speed fiber-coupled acousto-optic modulators (AOM) are an ideal for fast amplitude modulation of laser light in a single mode optical fiber with an operating wavelength range of 900nm to 980nm. These fiber coupled AOMs are used in fiber laser Q-switching and pulse picking applications, narrow line width laser measurements and many other applications related to precision fiber-coupled systems operating in the nanosecond range.

Low Insertion Loss, High Input Power

These fiber-coupled AOMs are efficient and are designed to be easy to use. With low insertion loss and high input power capability, they are ideal for a wide range of applications. The Bragg cell material is low-loss, and is chosen for its ability to support the high-Q acoustic refractive index grating that is fundamental to the operation of the AOM.

Matched RF Driver for Fiber AOM

The AOM operates at a set frequency, determined by the physical configuration of the Bragg cell; this model operates at 200 MHz.

In order to drive the AOM, a high power RF signal is needed at the AOM operating frequency; the signal power is typically up to a few watts. An RF Driver/Amplifier is required to amplify the low-level output from a signal generator to the power level needed to drive the acousto-optic modulator. The RF generators offered here integrate seamlessly with the AOMs and provide a one-stop solution for high-speed Q-switched, fiber-coupled laser modulation.

Three frequency-matched RF drivers are available for driving the 200 MHz 940nm AOM, one designed for analog input signals and another RF driver for TTL input signals. A high speed driver is also available for combined TTL / Analog input signals.

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