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Controllable self-pulsations in multi-section DFB lasers with an integrated phase-tuning section



IEEE Photonics Technology Letters 7 (1995), Nr.11, S.1261-1263
ISSN: 1041-1135
Fraunhofer HHI ()
distributed feedback lasers; gallium arsenide; iii-v semiconductors; indium compounds; integrated optics; laser modes; laser tuning; ridge waveguides; semiconductor lasers; waveguide lasers; multi-section dfb lasers; integrated phase-tuning section; controllable self-pulsations; InGaAsP-InP multi-section dfb lasers; self-pulsation; electrical switching; phase current; reproducible self-pulsation characteristics; ridge waveguide type laser; 1.55 mum; InGaAsP-InP

1.55- mu m InGaAsP-InP multi-section DFB lasers with an integrated phase tuning section have been fabricated. It is shown for the first time that the self-pulsation can be electrically switched on and off by adjusting the phase current. Reproducible self-pulsation characteristics from device to device are achieved in this way.