Abstract

Optical feedback has an impact on the tunability of lasers. We created a model of a tunable distributed Bragg reflector (DBR) laser describing the effect of optical feedback from a constant reflector distance on the wavelength tuning. Theoretical and experimental results are in good agreement. A further discussion of the model sheds light on design rules to reduce the effect of optical feedback on the tuning behavior. We introduced a new parameter called mode loss difference (MLD) as a metric for the feedback tolerance of the tuning behavior. A large MLD indicates higher tolerance of the laser to cavity length variations.

Control of dual-wavelength laser emission via optical feedback phase tuning

Robert Pawlus, Stefan Breuer, and Martin Virte
Opt. Continuum 2(10) 2186-2199 (2023)

Wavelength tuning and spectral properties of distributed feedback diode lasers with a short external optical cavity

Christian K. Laue, Ralf Knappe, Klaus-Jochen Boller, and Richard Wallenstein
Appl. Opt. 40(18) 3051-3059 (2001)

All-fiber laser feedback interferometer using a DBR fiber laser for effective sub-picometer displacement measurement

Desheng Zhu, Yuanyang Zhao, Yourui Tu, Hongtao Li, Lin Xu, Benli Yu, and Liang Lu
Opt. Lett. 46(1) 114-117 (2021)

Measuring the sensitivity to optical feedback of single-frequency high-power laser diodes

Mathias Christensen, Christof Zink, Muhammad Tahir Jamal, Anders Kragh Hansen, Ole Bjarlin Jensen, and Bernd Sumpf
J. Opt. Soc. Am. B 38(3) 885-892 (2021)

Dual-wavelength DBR laser integrated with high-speed EAM for THz communications

Yunlong Liu, Qiang Tang, Lichen Zhang, Xiaobo La, Lingjuan Zhao, Wei Wang, and Song Liang
Opt. Express 28(7) 10542-10551 (2020)