Nonlinear effects in coherently coupled laser resonators

James R. Leger; Hung-Sheng Chiang

doi:10.1117/12.2042910

7 March 2014 Nonlinear effects in coherently coupled laser resonators

James R. Leger, Hung-Sheng Chiang

Proceedings Volume 8960, Laser Resonators, Microresonators, and Beam Control XVI; 89601E (2014) https://doi.org/10.1117/12.2042910
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

A procedure is described to accurately measure the self phase-tuning in a coupled fiber laser. A fiber is designed and fabricated to eliminate the effects of self-tuning from wavelength shifting, thermal expansion, and thermally induced index change, allowing us to study the phase effects produced by Kramers-Kronig phase shifting as a function of various cavity parameters. For sufficient pump power, we observe that the Kramers-Kronig effect is capable of compensating for all path length errors introduced into the cavity, resulting in efficient lasing under all path length conditions. We have directly measured the Kramers-Kronig-induced phase shift and present experimental evidence that this additional phase compensates for the applied phase error and promotes efficient lasing.

Citation Download Citation

James R. Leger and Hung-Sheng Chiang "Nonlinear effects in coherently coupled laser resonators", Proc. SPIE 8960, Laser Resonators, Microresonators, and Beam Control XVI, 89601E (7 March 2014); https://doi.org/10.1117/12.2042910

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