A hybrid semiconductor-glass waveguide laser

Youwen Fan, Ruud M. Oldenbeuving, Edwin J. Klein, Chris J. Lee, Hong Song, Muhammed R. H. Khan, Herman L. Offerhaus, Peter J. M. van der Slot, Klaus-J. Boller, Jacob I. Mackenzie, Helena JelÍnková, Takunori Taira (+1 others)
2014 Laser Sources and Applications II  
We report on a novel type of laser in which a semiconductor optical amplifier (SOA) receives frequency-selective feedback from a glass-waveguide circuit. The laser we present here is based on InP for operation in the 1.55 µm wavelength range. The Si 3 N 4 /SiO 2 glass waveguide circuit comprises two sequential high-Q ring resonators. Adiabatic tapering is used for maximizing the feedback. The laser shows single-frequency oscillation with a record-narrow spectral linewidth of 24 kHz at an output
more » ... 24 kHz at an output power of 5.7 mW. The hybrid laser can be tuned over a broad range of 46.8 nm (1531 nm to 1577.8 nm). Such InP-glass hybrid lasers can be of great interest in dense wavelength division multiplexing (DWDM) and as phase reference in optical beam-forming networks (OBFN). The type of laser demonstrated here is also of general importance because it may be applied over a huge wavelength range including the visible, limited only by the transparency of glass (400 nm to 2.35 µm). Downloaded From: http://proceedings.spiedigitallibrary.org/ on 07/23/2014 Terms of Use: http://spiedl.org/terms Proc. of SPIE Vol. 9135 91351B-4 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 07/23/2014 Terms of Use: http://spiedl.org/terms Proc. of SPIE Vol. 9135 91351B-5 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 07/23/2014 Terms of Use: http://spiedl.org/terms
doi:10.1117/12.2054528 fatcat:uo7pxolevnbtldq46bgtffrwkq