[18p-B201-1~14] 3.15 Silicon photonics

[18p-B201-11] Si waveguide optical hybrid using MMI-coupler-only interconnection

〇Hideaki Okayama¹, Yosuke Onawa¹, Daisuke Shimura¹, Hiroyuki Takahashi¹, Hiroki Yaegashi¹, Hironori Sasaki¹ (1.OKI)

Keywords:silicon photonics, optical coherent communication, hybrid

Compact and low cost devices enabled by Si waveguide technology are expected to be used in many applications in the future. In the optical coherent communication, a 90^o hybrid optical circuit is used at the receiver. Conventionally it was composed of 2x2 and 1x2 MMI couplers connected by single mode waveguides. In this report we propose a simple device configuration using only MMI couplers also for the interconnection.