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Proceedings Paper

Observation of laser beam profile progression inside an extended laser cavity
Author(s): Frank F. Wu; Thomas C. Farrell
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Paper Abstract

This report presents the result of the laser beam profile progression in target-in-the-loop (TIL) system. This simulation experiment is to verify whether it is possible to form a tight hot spot similar to a single transversal mode in an extended laser cavity. Therefore, it is very important to observe the progression of the laser profile at a laser cavity mirror when a seeded high energy laser pulse is injected into the TIL system. The extended laser cavity is formed with a high reflectivity mirror on one end and an optical phase conjugated mirror as the second mirror, with potential disturbance media inside. The laser oscillation occurs only when it is triggered with a single frequency high energy laser pulse to overcome the threshold condition. With a laser cavity length of around 11 meters and a seeded laser pulse of 10 ns, we have been able to acquire and distinguish the laser beam profiles of each round-trip. Inserting a scattering media and other distortion elements can simulate atmospheric effects.

Paper Details

Date Published: 18 March 2013
PDF: 7 pages
Proc. SPIE 8599, Solid State Lasers XXII: Technology and Devices, 85991Z (18 March 2013); doi: 10.1117/12.2003091
Show Author Affiliations
Frank F. Wu, MetroLaser Inc. (United States)
Thomas C. Farrell, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 8599:
Solid State Lasers XXII: Technology and Devices
W. Andrew Clarkson; Ramesh Shori, Editor(s)

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