Related Experiment Video
Updated: Jul 9, 2026
09:38
Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
Published on: December 18, 2015
Accurate relative frequency cancellation between two independent lasers
M Kourogi1, B Widiyatmoko, K Imai
1Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, and Kanagawa Academy of Science and Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan.
Optics Letters
|December 12, 2007
Summary
A novel feed-forward method using an acousto-optic modulator precisely stabilizes laser frequency differences. This technique is valuable for high-precision laser applications and optical phase-locked loops.
Area of Science:
- Laser physics
- Optical engineering
Background:
- High-precision frequency applications require stable laser frequency differences.
- Existing methods for stabilization can be complex.
Purpose of the Study:
- To present a simple and novel feed-forward method for stabilizing the frequency difference between two independent lasers.
- To demonstrate its utility in optical phase-locked loops.
Main Methods:
- Implementation of a feed-forward control system.
- Utilizing an acousto-optic modulator for frequency control.
Main Results:
- Accurate stabilization and maintenance of the frequency difference between two lasers.
- The method is shown to be effective and simple to implement.
Conclusions:
- The described feed-forward method offers a straightforward approach to laser frequency stabilization.
- This technique is suitable for various high-precision laser applications, including optical phase-locked loops.
