Optimization of waveguide photodetector with thin absorbing layer and large responsivity

J.S. Choe; D.J. Kim; W.S. Han; J.H. Kim

doi:10.1117/12.2543023

31 January 2020 Optimization of waveguide photodetector with thin absorbing layer and large responsivity

J.S. Choe, D.J. Kim, W.S. Han, J.H. Kim

Proceedings Volume 11309, Next-Generation Optical Communication: Components, Sub-Systems, and Systems IX; 113090P (2020) https://doi.org/10.1117/12.2543023
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

We present optimized structure of waveguide photodetector (WGPD) having large responsivity in spite that its absorption layer is thin. Through beam-propagation method simulations, spot-size converter integrated WGPD is found to be able to have larger responsivity with thinner absorbing layer. Calculated responsivity and polarization dependent loss of the optimized design are 0.83 A/W and 0.13 dB with 150-nm-thick and 25-μm-long absorber.

Citation Download Citation

J.S. Choe, D.J. Kim, W.S. Han, and J.H. Kim "Optimization of waveguide photodetector with thin absorbing layer and large responsivity", Proc. SPIE 11309, Next-Generation Optical Communication: Components, Sub-Systems, and Systems IX, 113090P (31 January 2020); https://doi.org/10.1117/12.2543023

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