A tunable self-mixing chaotic laser with ultra-high bandwidth

Wenlong Zeng; Kai Tu; Daofu Han; Haitao Yan

doi:10.1117/12.2575192

10 October 2020 A tunable self-mixing chaotic laser with ultra-high bandwidth

Wenlong Zeng, Kai Tu, Daofu Han, Haitao Yan

Proceedings Volume 11555, Real-time Photonic Measurements, Data Management, and Processing V; 1155508 (2020) https://doi.org/10.1117/12.2575192
Event: SPIE/COS Photonics Asia, 2020, Online Only

Abstract

A self-mixing chaotic laser which can generate ultra high frequency band is proposed.The system realize the generation of UWB through the modulation of dispersion fiber.The system enters into chaos state under optical feedback and delay feedback (the influence of dispersive fiber).In chaotic state, the Ultra bandwidth is observed on the electrospectrum analyzer by adjusting the length of dispersive fiber.In this paper, two waveforms with unimodal and bimodal are obtained by adjusting the temperature of the phase-shifting grating and adjusting the bias controller.The maximum bandwidth under single peak is 36.78GHz, and the maximum bandwidth under twin peaks is 40.57GHz.By comparison, the bandwidth generated under the bimodal peaks is larger and more complex.The experimental results show that the system bandwidth enlargement effect is very obvious in the case of the selected parameters.The system is suitable for chaotic optical communication and sensing.

Conference Presentation

Citation Download Citation

Wenlong Zeng, Kai Tu, Daofu Han, and Haitao Yan "A tunable self-mixing chaotic laser with ultra-high bandwidth", Proc. SPIE 11555, Real-time Photonic Measurements, Data Management, and Processing V, 1155508 (10 October 2020); https://doi.org/10.1117/12.2575192

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