Switching dynamics between single-mode and dual-mode pulse emissions from a self-seeded laser diode
- 10 January 2000
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 76 (3) , 276-278
- https://doi.org/10.1063/1.125746
Abstract
Spectrally selected, self-seeded pulses are generated from a Fabry–Perot laser diode in an external cavity containing a two-chromatic fiber grating. Electrical switching between single-mode and dual-mode operations is demonstrated by controlling the amplitude of the ac signal applied to the laser diode. The principle is based on carrier induced frequency chirp that determines the spectral overlap of the Fabry–Perot modes with the grating reflection band during the pulse buildup time. We also investigate the switching dynamics and show that the steady states can be reached after about five to six round-trip cycles. The buildup of single-mode emissions is slightly faster than that of the dual mode.Keywords
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