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Authors: S. Dhoore, A. Rahim, G. Roelkens, G. Morthier
Title: 12.5 Gbit/s discretely tunable InP-on-silicon filtered feedback laser with sub-nanosecond wavelength switching times
Format: International Journal
Publication date: 4/2018
Journal/Conference/Book: Optics Express
Volume(Issue): 26(7) p.8059-8068
Internal Reference: [N-2174]
DOI:
Download: Download this Publication (8.9MB) (8.9MB)

Abstract

A heterogeneously integrated InP-on-silicon fast tunable filtered feedback laser is demonstrated. The laser device consists of a main Fabry-Perot cavity connected to an integrated arrayed waveguide grating of which the outputs form external cavities in which semiconductor optical amplifiers can be switched to provide single-mode operation and tunability. The laser can operate at four different wavelengths whereby switching between each wavelength channel is done within one nanosecond. For each wavelength channel 12.5 Gbit/s NRZ-OOK direct modulation is demonstrated. The combination of fast wavelength switching with straightforward wavelength control and high-speed direct modulation characteristics make the demonstrated laser structure very attractive for use in optical packet or burst switching systems.

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