Self-Injection Locking of a Gain-Switched Laser Diode
نویسندگان
چکیده
We experimentally observed self-injection locking regime of the gain-switched laser to high-Q optical microresonator. revealed that comb generated by experiences a dramatic reduce teeth linewidths in this regime. demonstrated Lorentzian linewidth sub-kHz scale as narrow for non-switched locked laser. Such setup allows generation high-contrast electrically-tunable frequency combs with tunable line spacing wide range from 10 kHz up GHz. The characteristics were studied various modulation parameters - and amplitude, parameters, defining efficiency phase, coupling efficiency, pump detuning.
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K. NAKKEERAN∗, P. K. A. WAI†, L. XU‡, L. F. K. LUI† and H. Y. TAM¶ ∗School of Engineering, Fraser Noble Building, King’s College, University of Aberdeen, Aberdeen AB24 3UE, UK [email protected] †Photonics Research Center and Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong ‡Department of Physics, University of Science ...
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ژورنال
عنوان ژورنال: Physical review applied
سال: 2021
ISSN: ['2331-7043', '2331-7019']
DOI: https://doi.org/10.1103/physrevapplied.15.064066