Compact Optical Buffer Module for Intra-Packet Synchronization Based on InP 1×8 Switch and Silica-Based Delay Line Circuit

Myung-Joon KWACK; Tomofumi OYAMA; Yasuaki HASHIZUME; Shinji MINO; Masaru ZAITSU; Takuo TANEMURA; Yoshiaki NAKANO

doi:10.1587/transele.E96.C.738

Regular Section

Compact Optical Buffer Module for Intra-Packet Synchronization Based on InP 1×8 Switch and Silica-Based Delay Line Circuit

Myung-Joon KWACK, Tomofumi OYAMA, Yasuaki HASHIZUME, Shinji MINO, Masaru ZAITSU, Takuo TANEMURA, Yoshiaki NAKANO

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Keywords: optical switch, optical buffer, integrated optical devices

JOURNAL RESTRICTED ACCESS

2013 Volume E96.C Issue 5 Pages 738-743

DOI https://doi.org/10.1587/transele.E96.C.738

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Abstract

Optical buffering has been one of the major technical challenges in realizing optical packet switching routers and interconnects. We demonstrate a compact optical buffer module, comprising an InP 1×8 phased-array switch and a silica-based delay line circuit. The integrated delay line circuit is fabricated on the silica-based planar-lightwave circuit (PLC) platform, and has the ladder architecture for reducing the size. In addition, variable optical couplers are integrated to achieve effective power equalization. Tunable and uniform buffering of up to 21ns is obtained with 3-ns temporal resolution.

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