Title :
Low-Loss Silicon Nitride AWG Demultiplexer Heterogeneously Integrated With Hybrid III–V/Silicon Photodetectors
Author :
Piels, Molly ; Bauters, J.F. ; Davenport, Michael L. ; Heck, Martijn J. R. ; Bowers, John E.
Author_Institution :
Univ. of California, Santa Barbara, Santa Barbara, CA, USA
Abstract :
A unique and novel platform that combines III-V and silicon photonic components with ultra-low loss silicon nitride waveguides for monolithic integration of novel photonic circuits is presented. Successful (proof-of-principle) integration of eight hybrid III-V/silicon photodetectors and an arrayed waveguide grating is shown. The InGaAs photodiodes in this platform had average fiber-coupled responsivity of 0.36 A/W at 1550 nm, 30 GHz electrical bandwidth, and operated up to 50 Gb/s. The AWG had an insertion loss of 0.85 dB and adjacent-channel cross-talk less than -38 dB.
Keywords :
III-V semiconductors; arrayed waveguide gratings; demultiplexing equipment; elemental semiconductors; hybrid integrated circuits; indium compounds; integrated optoelectronics; monolithic integrated circuits; optical communication equipment; optical crosstalk; optical fibre communication; optical fibre couplers; optical fibre losses; photodetectors; photodiodes; silicon; silicon compounds; III-V photonic components; Si3N4-InGaAs-Si; adjacent-channel cross-talk; arrayed waveguide grating; electrical bandwidth; fiber-coupled responsivity; frequency 30 GHz; hybrid III-V-silicon photodetectors; insertion loss; loss 0.85 dB; low-loss silicon nitride AWG demultiplexer; monolithic integration; photodiodes; photonic circuits; silicon photonic components; ultralow loss silicon nitride waveguides; wavelength 1550 nm; Arrayed waveguide gratings; Loss measurement; Photodiodes; Propagation losses; Silicon; Optical receivers; photonic integration; silicon photonics; wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2013.2286320
