Mode-locked ring lasers and their application in a coupled all-optical flip-flop memory

X. Yang, E. Tangdiongga, S. Zhang, Z. Li, M.T. Hill, D. Lenstra, G.D. Khoe, H.J.S. Dorren

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


We demonstrate the generation of picosecond and sub-picosecond optical pulses source by using a semiconductor optical amplifier (SOA) placed in a ring cavity. Sub-picosecond optical pulses are generated by using an SOA and a linear polarizer placed in a passively mode-locked ring-laser configuration. Nonlinear polarization rotation in the SOA serves as the mode-locking mechanism. The ring cavity generates pulses with duration below 800 fs (FWHM) at a repetition rate of 14 MHz. We also demonstrate an all-optical flip-flop based on two coupled identical actively mode-locked lasers. Each ring-laser outputs optical pulses with duration of 3 ps (FWHM) at a repetition rate of 10 GHz. We demonstrate flip-flop operation and regular toggling between the states.
Original languageEnglish
Title of host publicationProceedings of the 9th Annual Symposium of the IEEE/LEOS Benelux Chapter, 2-3 December 2004, Ghent, Belgium
Publication statusPublished - 2004


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