期刊
CERAMICS INTERNATIONAL
卷 41, 期 7, 页码 8650-8654出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.03.076
关键词
Glass integrated optics; Ion-exchange; DBR laser; Q-switched laser
资金
- Region Rhone-Alpes [CIBLE-2010]
In this paper, an integrated passively Q-switched DBR laser made in glass integrated optics technology is designed, fabricated and investigated. The laser, operating at 1030 nm wavelength, is formed by an ion-exchanged single mode waveguide realized in an Ytterbium doped phosphate glass. The feedback is provided by a DBR structure made of a Fiber Bragg Grating and a dielectric mirror. The Q-switched behavior is obtained by hybridizing the saturable absorber on the waveguides, so that it interacts with the evanescent part of the guided field. The saturable absorber we use is a bis(4-dimethylaminodithiobenzil)nickel (BDN) dye incorporated in a polymeric film. Using this structure, we were able to demonstrate a Q-switched operation for several BDN concentrations, allowing to vary the pulse duration and the repetition rate of the device. Moreover, we report a very narrow 372 MHz wide emission spectrum while in Q-switched regime. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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