Cart (Loading....) | Create Account
Close category search window
 

3.2 - Acoustic wave amplitude modulation of a multimode ring laser

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Buholz, N. ; W.W.Hansen Laboratories of Physics, Stanford Univ., CA ; Chodorow, M.

Synchronous intercavity amplitude modulation of a ring laser operating well above threshold causes the numerous axial modes in each oppositely directed (OD) wave to lock into fixed amplitudes and phases. The light in the cavity is composed of two oppositely directed pulses of roughly 30-cm spatial extent. Saturation of the active medium dictates the location of the modulator for symmetric treatment of the OD pulses. If the modulator is located symmetrically (natural crossing), the pulses cross at the modulator and have identical amplitudes. If the modulator is located asymmetrically, the OD pulses generally have different amplitudes, experience different net population inversions in the active medium, and do not cross at the modulator. A frequency offset between OD pulses also appears when the modulator is located asymmetrically. Other phase-locking phenomena including extinction of one of the OD waves are observed. When the modulator is located symmetrically, the rotation sensing is improved with multimode phase-locked operation over that of the same ring laser operating near threshold. Frequency locking still occurs, however, at about three times the earth rate, or approximately 200 Hz. The locking frequency is found to depend upon modulator depth and frequency. The frequency locking may result from internally reflected pulses which are necessarily coincident with the proper pulses when the modulator is located symmetrically, and a modulation scheme has been devised to reduce such effects.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:3 ,  Issue: 11 )

Date of Publication:

November 1967

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.