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Proceedings Paper

Active waveguides in lithium fluoride for color centers based optical amplifiers
Author(s): Rosa Maria Montereali; Francois Auzel; Giuseppe Baldacchini; Francesca Bonfigli
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Paper Abstract

Nowadays communications require a continuous increase of data rates and, as far as the single customer is concerned, there is a severe bottleneck in the last kilometer of the transmission line. The only viable solution to this problem is the Fiber to the Home (FTTH) system, which requires an amplification of the incoming signal in the optical fiber. However, the device of election, the Erbium Doped Fiber Amplifier (EDFA), is still very expensive, so that new optical waveguide amplifiers based on Lithium Fluoride (LiF) thin layers containing color centers have been recently proposed. Such electronic defects are characterized by broad absorption bands in the visible and near ultra-violet (UV) spectral range and by efficient, broad-band emissions extending from the visible to the near-infrared (NIR). One of the important properties of these light emitters arises from the short lifetime, several nanoseconds, which is a fundamental feature for high gain laser media. Several basic and technical aspects of novel solid-state amplifier configurations based on active waveguides in LiF will be presented and discussed.

Paper Details

Date Published: 7 June 2005
PDF: 7 pages
Proc. SPIE 5850, Advanced Laser Technologies 2004, (7 June 2005); doi: 10.1117/12.633728
Show Author Affiliations
Rosa Maria Montereali, ENEA, CR Frascati (Italy)
Francois Auzel, ENEA, CR Frascati (Italy)
Giuseppe Baldacchini, ENEA, CR Frascati (Italy)
Francesca Bonfigli, ENEA, CR Frascati (Italy)

Published in SPIE Proceedings Vol. 5850:
Advanced Laser Technologies 2004
Ivan A. Shcherbakov; Anna Giardini; Vitali I. Konov; Vladimir I. Pustovoy, Editor(s)

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