Title :
Multistability of a semiconductor laser with integrated delayed optical feedback
Author :
Loose, A. ; Goswami, B.K. ; Wunsche, H.-J. ; Henneberger, F.
Author_Institution :
AG Photonik, Humboldt-Univ. zu Berlin, Berlin, Germany
Abstract :
A new regime reveals the operation, where optical feedback enables a semiconductor laser to operate in one of several stable states. An experimental device integrates the delayed optical feedback by using a passive waveguide and an amplifier section on the same chip as the distributed feedback (DFB) laser. Feedback phase and strength can be adjusted by applying a direct current to the passive and amplifier section, respectively. For the laser current IDFB biased closely above threshold, three continuous wave (cw) states spaced 0.4 nm apart from each other and having a different power were found to coexist for multiple ranges of amplifier IA and phase current IP.
Keywords :
distributed feedback lasers; integrated optics; laser beams; laser stability; semiconductor lasers; waveguide lasers; amplifier section; continuous wave states; distributed feedback laser; integrated delayed optical feedback; laser current; passive waveguide; phase current; semiconductor laser multistability; Delay; Distributed feedback devices; Laser feedback; Laser stability; Optical amplifiers; Optical feedback; Optical waveguides; Semiconductor lasers; Semiconductor optical amplifiers; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5191595
