Injection Locking Bandwidth in 1550-nm VCSELs Subject to Parallel and Orthogonal Optical Injection

• Published in: IEEE journal of selected topics in quantum electronics Vol. 15; no. 3; pp. 585 - 593
• Main Authors: Hurtado, A., Labukhin, D., Henning, I.D., Adams, M.J.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.05.2009; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Bandwidth; Devices; Frequency; Injection locking; Injection locking bandwidth; Injection-locked oscillators; Laser mode locking; Laser theory; Lasing; Optical devices; Optical polarization; Polarization; polarized optical injection; Power measurement; Quantum electronics; Stability; Surface emitting lasers; Vertical cavity surface emitting lasers; vertical-cavity surface-emitting lasers (VCSELs)
• ISSN: 1077-260X; 1558-4542
• DOI: 10.1109/JSTQE.2009.2014970

The injection locking properties of two commercially available 1550-nm vertical-cavity surface-emitting lasers (VCSELs) have been analyzed experimentally and theoretically in this work. The injection locking diagrams in the plane of frequency detuning versus injected power have been experimentally measured for both devices subject to parallel- and orthogonal-polarized optical injection into the two polarizations of the fundamental mode. Differences in the injection locking bandwidth are experimentally observed when the devices are subject to parallel or to orthogonal-polarized optical injection. A theoretical model based on the Fabry-Perot method has been developed to reproduce the measured stability maps of both 1550-nm VCSELs subject to parallel-polarized optical injection into the parallel polarization lasing mode showing excellent agreement between theory and experiments.