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Proceedings Paper

InP-PD integration on silica-based PLC for QPSK receiver
Author(s): Mikitaka Itoh; Toshikazu Hashimoto
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Paper Abstract

We review our recent progress on the heterogeneous integration of high-speed InP photodiodes (PDs) on a silica-based planar lightwave circuit (PLC) with the goal of realizing a small photonic integrated circuit (PIC) device with excellent performance. Heterogeneous integration technology is a combination of monolithic InP fabrication and angled micro-mirror etching processes, and provides low-loss optical coupling between them without any complicated optical alignment. Also, by employing 2.5%-Δ waveguides with a bending radius of 1 mm, we can reduce the chip size required for compact PIC devices. We demonstrated a dual-polarization quadrature-phase-shift-keying (DP-QPSK) coherent detector composed of a variable optical attenuator (VOA), a polarization beam splitter (PBS), eight high-speed PDs, two 90-degree optical hybrids (OHs) and micro-mirrors. Heterogeneous technology on silica-based PLCs will be an attractive way to provide compact high performance PICs for future photonic networks.

Paper Details

Date Published: 6 March 2013
PDF: 6 pages
Proc. SPIE 8628, Optoelectronic Integrated Circuits XV, 86280L (6 March 2013); doi: 10.1117/12.2005888
Show Author Affiliations
Mikitaka Itoh, NTT Photonics Labs., NTT Corp. (Japan)
Toshikazu Hashimoto, NTT Photonics Labs., NTT Corp. (Japan)

Published in SPIE Proceedings Vol. 8628:
Optoelectronic Integrated Circuits XV
Louay A. Eldada; El-Hang Lee, Editor(s)

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