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Proceedings Paper

Er-doped LiNbO3 waveguide lasers
Author(s): Wolfgang Sohler; Hubertus Suche
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Paper Abstract

The state-of-the-art of Er-doped integrated optical lasers in LiNbO3 is reviewed. They are fabricated in Er- diffusion doped substrates with Ti-diffused channel guides of high quality. The laser resonators are formed by dielectric mirrors vacuum-deposited on the polished waveguide end faces. Five different types of Ti:Er:LiNbO3 waveguide lasers are presented.Among them are free running Fabry-Perot lasers of six different wavelengths in the range 153nm < (lambda) < 1610nm with a cw-output power up to 63mW. They have a shot noise limited relative intensity noise at frequencies above 50MHz. Tunable lasers have been developed by the intracavity integration of an acoustooptical amplifying wavelength filter yielding a tuning range up to 31nm. With an intracavity electrooptic phase modulator modelocked laser operation has been obtained with pulse repetition frequencies up to 10GHz; pulses of only a few ps width could be generated. With an intracavity amplitude modulator Q-switched laser operation has been achieved with up to 2.4W pulse peak power at 2kHz repetition frequency. Moreover, distributed Bragg reflector lasers of emission linewidth < 8kHz have been developed using a dry- etched surface grating as one of the mirrors of the laser cavity.

Paper Details

Date Published: 2 May 1997
PDF: 12 pages
Proc. SPIE 2996, Rare-Earth-Doped Devices, (2 May 1997); doi: 10.1117/12.271155
Show Author Affiliations
Wolfgang Sohler, Univ. GH Paderborn (Germany)
Hubertus Suche, Univ. GH Paderborn (Germany)

Published in SPIE Proceedings Vol. 2996:
Rare-Earth-Doped Devices
Seppo Honkanen, Editor(s)

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