SIMULTANEOUS PHASE-LOCKING OF LONGITUDINAL AND TRANSVERSE LASER MODES

1 October 1968

journal article
Published by AIP Publishing in Applied Physics Letters

Vol. 13 (7) , 235-237
https://doi.org/10.1063/1.1652586

Abstract

By using a discharge tube filled with pure neon as a nonlinear element, it has been found possible to obtain simultaneous locking of both longitudinal and transverse modes of a 6328 Å He–Ne laser. Under certain circumstances, each transverse mode has all its longitudinal resonances phase locked to form a narrow pulse, but the pulses corresponding to the various transverse mode orders do not coincide in time. Beam scanning has been observed when the frequency spacing between the transverse modes is a simple fraction of the longitudinal mode spacing. Under these conditions, a ``spot'' of light traces out a zig‐zag path in the laser cavity.

Keywords

This publication has 4 references indexed in Scilit:

Transverse mode locking
IEEE Journal of Quantum Electronics, 1968
Self-locking of transverse higher-order modes in a He-Ne laser
Proceedings of the IEEE, 1968
Laser Beams and Resonators
Applied Optics, 1966
Off-Axis Paths in Spherical Mirror Interferometers
Applied Optics, 1964