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Self-pulsation in broad area lasers with transverse-mode selective feedback |
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| Authors: | Sandra Wolff Christoph Doering |
| Affiliation: | a Nano+Bio Center, Technical University Kaiserslautern, P.O. Box 3049, D-67653 Kaiserslautern, Germany b Physics Department, Technical University Kaiserslautern, P.O. Box 3049, D-67653 Kaiserslautern, Germany c Research Institute for Laser Physics, 199034, Birjevaya Liniya, 12, Saint Petersburg, Russia |
| Abstract: | The influence of the feedback strength on the output intensity dynamics of anti-reflection coated broad area lasers in a Fourier-optical transverse-mode selective external 4f-setup is investigated numerically and experimentally. At certain pump current conditions the broad area laser (BAL) is operating in a repetitive self-Q-switching mode emitting 1-3 ns pulses at repetition rates of 200-500 MHz. Moreover the influence of longitudinal mode conditions on the BAL’s output dynamics is investigated. |
| Keywords: | Semiconductor lasers Broad area diode laser Optical resonators Spatial filtering |
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