NDLI: On the Conrol Aspect of Laser Frequency Stabilization

Content Provider	IEEE Xplore Digital Library
Author	Zia, Omar
Copyright Year	1992
Description	Author affiliation: Associate Professor, Electronic Engineering Technology, California Polytechnic State University, San Luis Obispo, California 93407 (Zia, Omar)
Abstract	The realization of frequency-stable lasers is viewed as a key to progress in many areas of research, so the search for more effective techniques of frequency stabilization has intensified significantly in recent years. NASA's "SUNLITE" project at Langley Research Center is investigating and validating the fundamental linewidth and frequency stability limits of a Nd:YAG laser oscillator locked to a high finesse reference cavity in the microgravity and vibration-free environment of space. As part of this project, NASA engineers have designed and built a space-qualified system for measuring the linewidth and stability limits of an ultra-stable laser oscillator in space. In order to achieve greater stability and better performance, both passive and active frequency control, which requires use of a feedback control loop, has been applied. By using this technique of frequency stabilization, which is based on the fundamental property of feedback control theory, the intrinsic frequency noise and drift of the laser are expected to be reduced to the measurement noise level. The objetive of this paper is to further investigate the application of feedback control theory in active frequency control as a frequency stabilization technique and determine the most appropriate control strategy to be used, particularly in the SUNLITE project.
Starting Page	1628
Ending Page	1629
File Size	135191
Page Count	2
File Format	PDF
ISBN	0780302109
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-06-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Laser stability Feedback control Oscillators Laser feedback Laser theory Frequency control Noise level NASA Design engineering Optical design
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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