Skip to main content

NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Optical Phase Locking in the Microradian Domain - Potential Application to NASA Spaceborne Optical Measurements

Published

Author(s)

Jun Ye, John L. Hall

Abstract

We have constructed and demonstrated a high performance optical phase locked loop between two cw Nd: YAG lasers. The feedback system is relatively simple, employing only the laser's internal PZT and an external acousto-optic modulator. A residual phase noise on the order of 1 microradian between two optical fields is achieved under the locked condition. This is verified by time- and frequency-domain analysis using a two-oscillator approach conventionally used in the rf measurement. Potential applications to NASA space-based optical measurements are discussed.
Citation
Optics Letters
Volume
24
Issue
No. 24

Keywords

high precision measurements, laser frequency stabilization, optical phase lock

Citation

Ye, J. and Hall, J. (1999), Optical Phase Locking in the Microradian Domain - Potential Application to NASA Spaceborne Optical Measurements, Optics Letters (Accessed October 13, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created December 1, 1999, Updated February 17, 2017
Was this page helpful?