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Self-injection locking effect eliminates the need for bulky narrow-linewidth, tunable, continuous-wave laser for pumping of high-Q optical microresonators, utilizing bare laser diodes. Here we propose an experimental technique, which allows measuring the main characteristic of self-injection locking, a frequency tuning curve. We measure tuning curves of locking to linear and nonlinear microresonators and compare them to the theoretical model.
Andras Kis, Fedele Tagarelli, Edoardo Lopriore
Yves Bellouard, Victor Carle Adrien Boureau, Ruben Ricca