Sharp Pulses in a Semiconductor Laser Array Subject to Optical Feedback and Transverse Coupling

• Published in: 2024 IEEE 29th International Semiconductor Laser Conference (ISLC) pp. 1 - 2
• Main Authors: Scranton, Greggory, Spitz, Olivier, Crespo, Matthew, Berrill, Mark, Braiman, Yehuda
• Format: Conference Proceeding
• Language: English
• Published: IEEE 29.09.2024
• Subjects: Couplings; external optical feedback; Interference; laser array; Laser feedback; nonlinear dynamics; Optical arrays; Optical coupling; Optical feedback; Optical pulses; periodic pulses; Semiconductor laser arrays; Semiconductor lasers

We report on sharp pulses in an array of semiconductor lasers that are coupled via an external cavity. Analysis of the combined laser fields shows that a major drop of intensity occurs before pulses are triggered. Pulsing is thus preceded by a temporal destructive interference.