We report on an integrated approach to obtain multiwavelength emission from semiconductor ring lasers with filtered optical feedback. The filtered feedback is realized on-chip employing two arrayed-waveguide gratings to split/recombine light into different wavelength channels. Through experimental observations and numerical simulations, we find that the effective gain of the different modes is the key parameter which has to be balanced in order to achieve multiwavelength emission. This can be achieved by tuning the injection current in each amplifier.
© 2013 Optical Society of AmericaFull Article | PDF Article
Toni Pérez, Alessandro Scirè, Guy Van der Sande, Pere Colet, and Claudio R. Mirasso
Opt. Express 15(20) 12941-12948 (2007)
Lendert Gelens, Stefano Beri, Guy Van der Sande, Jan Danckaert, Nicola Calabretta, Harm J. S. Dorren, Richard Nötzel, Erwin A. J. M. Bente, and Meint K. Smit
Opt. Express 16(15) 10968-10974 (2008)
Nur Ismail, Bakiye Imran Akca, Fei Sun, Kerstin Wörhoff, René M. de Ridder, Markus Pollnau, and Alfred Driessen
Opt. Lett. 35(16) 2741-2743 (2010)