Laser Heterodyne System


The Laser Heterodyne System is a complete, easy-to-use system for calibrating and characterizing laser frequency standards. The system characterizes both short- and long-term behaviors of primary (e. g. iodine-stabilized) and secondary (e. g. 2-mode polarization-stabilized or Zeeman-stabilized) laser frequency standards using the highly accurate and sensitive optical heterodyne technique. A basic heterodyne system accommodates a reference laser and one laser-under-test, but can be easily expanded to accommodate multiple lasers or re-configured to meet the needs of special applications.


Basic System Components:
  • 0.6 m x 0.9 m optical breadboard

  • (2) broadband HR mirrors and (1) broadband beam combiner with kinematic mirror mounts

  • Focusing lens with 3-axis translation stage

  • Linear polarizer, lambda/4 and lambda/2 waveplates with rotary mounts, and adjustable aperture

  • Acousto-optic modulator for optical isolation

  • 1 GHz photodetector with lo-noise high-gain amplifier, power supplies, lo-pass filters, and rf power splitter

  • Agilent 53181A frequency counter with IEEE-488 interface and 1.5 GHz option

  • Notebook computer with IEEE-488 interface and Windows XP operating system

  • LaserCal data acquisition and analysis software
  • Download brochure (1.2 MB)


    Application Notes:
    App. Note 1: Principles of Laser Heterodyne Measurements (326 kB)
    App. Note 2: Using the Winters Electro Optics Heterodyne System (276 kB)
    App. Note 3: Testing Various Laser Frequency Standards (68 kB)

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