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Proceedings Paper

Fully stabilized single-frequency Ti:Al2O3 laser oscillator
Author(s): Charles E. Hamilton; K. W. Kangas; Clifford H. Muller III; Dennis D. Lowenthal; Thomas D. Raymond
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Paper Abstract

Single-longitudinal-mode (SLM), pulsed operation is demonstrated on a tunable Ti:Al2O3 oscillator that utilizes a glancing-incidence cavity configuration. The oscillator is tunable over 720-915 nm, and the output has a bandwidth that is near transform-limited at equal to or less than 500 MHz. Beam walk-off and diffraction effects define cavity configurations for which SLM operation is possible. Stable SLM operation, without any active stabilization, is achieved with a 6.5-cm long cavity in which the separation between the tuning mirror and the grating is kept small (1.5 cm). The oscillator is actively stabilized by a feedback mechanism that monitors small changes in the direction of the output beam that result from small wavelength deviations. Single-longitudinal-mode operation over several hours has been demonstrated. The temporal jitter of the oscillator is reduced to + or - 1.2 ns while maintaining SLM operation.

Paper Details

Date Published: 1 April 1990
PDF: 13 pages
Proc. SPIE 1223, Solid State Lasers, (1 April 1990); doi: 10.1117/12.18413
Show Author Affiliations
Charles E. Hamilton, Spectra Technology, Inc. (United States)
K. W. Kangas, Spectra Technology, Inc. (United States)
Clifford H. Muller III, Spectra Technology, Inc. (United States)
Dennis D. Lowenthal, Spectra Technology, Inc. (United States)
Thomas D. Raymond, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 1223:
Solid State Lasers
George Dube, Editor(s)

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