Strongly Detuned Tunable Photonic Oscillators
Herrera D.J. Tomkins K. Valagiannopoulos C. Kovanis V. Lester L.F.
15 December 2021Institute of Electrical and Electronics Engineers Inc.
IEEE Photonics Technology Letters
2021#33Issue 241399 - 1402 pp.
A semi-analytical dimensionless formula is presented for predicting the period-one frequency of an optically-injected laser over a wide range of injection powers and positive detunings. The result shows that for any given injected optical power, there exists an optimal detuning at which the period-one frequency is maximized. The formula is applied to a tabletop optical injection system with a commercially-available quantum-well distributed feedback laser with previously unknown design parameters. By extrapolating the linearity of the period-one frequencies at zero-detuning and weak-injection regimes, the physical control parameters of the laser are approximated to the analytical formula for wide ranges of injection powers and positive detunings. The accuracy of the model is experimentally verified, achieving period-one frequencies as high as 84.7 GHz.
distributed feedback lasers , optical injection locking , period-one , Tunable photonic oscillators
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Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
Department of Physics, Nazarbayev University, Nur-Sultan, Kazakhstan
Department of Electrical and Computer Engineering
Department of Physics
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