Share Email Print

Proceedings Paper

Resonant electro-optical modulator for high laser-power single-mode fiber relay
Author(s): W. Hackenberg; M. Zaehringer; A. Silber
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We describe the design and performance of a resonant electro-optical modulator, based on stoichiometric lithium tantalate, capable of handling high optical powers and providing a large modulation depth. This phase modulator is part of the single-mode fiber relay used in the ESO VLT Laser Guide Star Facility for adaptive optics to transport 589-nm laser light from the PARSEC dye laser installed in the laser clean room to the laser launch telescope. The purpose of the phase modulator is to broaden the single-frequency PARSEC laser linewidth before the laser light is injected into the single-mode relay fiber. By this the power handling capability of the single-mode fiber is increased by a factor of 3 or 10 W of in-coupled power at 589 nm, while maintaining the excitation efficiency of the mesospheric sodium D2 transition.

Paper Details

Date Published: 27 June 2006
PDF: 8 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 62724D (27 June 2006); doi: 10.1117/12.673190
Show Author Affiliations
W. Hackenberg, European Southern Observatory (Germany)
M. Zaehringer, Kayser-Threde GmbH (Germany)
A. Silber, European Southern Observatory (Germany)

Published in SPIE Proceedings Vol. 6272:
Advances in Adaptive Optics II
Brent L. Ellerbroek; Domenico Bonaccini Calia, Editor(s)

© SPIE. Terms of Use
Back to Top