Er-doped LiNbO3 waveguide lasers

Wolfgang Sohler; Hubertus Suche

doi:10.1117/12.271155

2 May 1997 Er-doped LiNbO₃ waveguide lasers

Wolfgang Sohler, Hubertus Suche

Proceedings Volume 2996, Rare-Earth-Doped Devices; (1997) https://doi.org/10.1117/12.271155
Event: Photonics West '97, 1997, San Jose, CA, United States

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.

Citation Download Citation

Wolfgang Sohler and Hubertus Suche "Er-doped LiNbO₃ waveguide lasers", Proc. SPIE 2996, Rare-Earth-Doped Devices, (2 May 1997); https://doi.org/10.1117/12.271155

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