Stability and instability of quantum cascade lasers subject to optical feedback

Cheng Wang

doi:10.1117/12.2583979

5 March 2021 Stability and instability of quantum cascade lasers subject to optical feedback

Cheng Wang

Proceedings Volume 11680, Physics and Simulation of Optoelectronic Devices XXIX; 116800H (2021) https://doi.org/10.1117/12.2583979
Event: SPIE OPTO, 2021, Online Only

Abstract

This work shows that optical feedback can either stabilize or destabilize quantum cascade lasers, depending on the alignment of the reflection mirror. On one hand, the laser is insensitive to the common well-aligned optical feedback, and the relative intensity noise has little change against optical feedback. Meanwhile, strong optical feedback well stabilizes the laser frequency and significantly narrows the spectral linewidth, instead of evoking chaotic oscillations. On the other hand, misaligned optical feedback with a tilt angle of the reflection mirror triggers multiple nonlinear dynamics including periodic oscillations, quasi-periodic oscillations, and low-frequency oscillations.

Conference Presentation

Citation Download Citation

Cheng Wang "Stability and instability of quantum cascade lasers subject to optical feedback", Proc. SPIE 11680, Physics and Simulation of Optoelectronic Devices XXIX, 116800H (5 March 2021); https://doi.org/10.1117/12.2583979

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