Frequency-Tunable Broadband Microwave Comb Generation Using an Integrated Mutually Coupled DFB Laser
Author(s): Zhao, W (Zhao, Wu); Mao, YF (Mao, Yuanfeng); Li, YB (Li, Yaobin); Chen, GC (Chen, Guangcan); Lu, D (Lu, Dan); Kan, Q (Kan, Qiang); Zhao, LJ (Zhao, Lingjuan)
Source: IEEE PHOTONICS TECHNOLOGY LETTERS Volume: 32 Issue: 22 Pages: 1407-1410 DOI: 10.1109/LPT.2020.3027558 Published: NOV 15 2020
Abstract: A microwave frequency comb (MFC) generator based on an integrated mutually coupled (IMC) distributed feedback (DFB) laser is demonstrated. The proposed MFC generator is simple and compact, only consisting of an IMC laser, a microwave signal generator, and a photodetector. By adjusting the bias currents of the three sections of the IMC laser and the modulation parameters, the bandwidth of the MFC can be significantly enhanced compared to the case adopting a solitary DFB laser. The characteristics of the MFC with the tuning current and the modulation parameters were investigated experimentally to determine the optimum operating condition. A broadband MFC with 40 GHz bandwidth within a +/- 5 dB amplitude variation was achieved under a modulation frequency of 2 GHz.
Accession Number: WOS:000579421500001
Author Identifiers:
Author Web of Science ResearcherID ORCID Number
Lu, Dan 0000-0001-7811-8250
ISSN: 1041-1135
eISSN: 1941-0174
