Chaos Bandwidth Enhancement of Fabry-Pérot Laser Diode With Dual-Mode Continuous-Wave Optical Injection

• Published in: IEEE journal of quantum electronics Vol. 55; no. 3; pp. 1 - 8
• Main Authors: Hong Han, Ming Jiang Zhang, Shore, K. Alan
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.06.2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Bandwidth; Bandwidth enhancement; Chaos; Computer simulation; Continuous radiation; Diodes; dual-mode optical injection; Fabry–Pérot laser; High-speed optical techniques; Laser beams; Laser feedback; Lasers; Optical feedback; Optical reflection; Semiconductor lasers
• ISSN: 0018-9197; 1558-1713
• DOI: 10.1109/JQE.2019.2909191

We show numerically that dual-mode continues wave optical injection into a Fabry-Pérot laser diode subject to optical feedback generates a chaos bandwidth, which is four to six times that without optical injection. As a comparison, it is shown that single-mode optical injection can increase the chaos bandwidth threefold with careful choice of detuning. Furthermore, any combination of dual-mode injection will enhance the chaos bandwidth and especially for strong injection and over relatively large positive detuning ranges. Even, when the bias current of the Fabry-Pérot laser diode is relatively low, the bandwidth of chaos can reach 35 GHz after dual-mode optical injection, which is six times than that of without optical injection. The enhanced bandwidth with dual-beam optical injection is in accordance with our previous experiments [25]. The present simulations provide detailed guidance on the choice of experimentally accessible parameters to generate chaotic signals with enhanced bandwidth by using single or dual-beam optical injection into a Fabry-Pérot laser diode with optical feedback.