Novel Optical 90º Hybrid with Low Wavelength Sensitive Power Balance and Phase Deviation over 94-nm-wide Spectral Range

Conference: ECOC 2009 - 35th European Conference on Optical Communication
09/20/2009 - 09/24/2009 at Vienna, Austria

Proceedings: ECOC 2009

Pages: 4Language: englishTyp: PDF

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Jeong, Seok-Hwan; Morito, Ken (Fujitsu Laboratories LTD., 10-1 Morinosato-Wakamiya, Atsugi, 243-0122, Kanagawa, Japan)

We propose a novel optical 90deg hybrid employing a paired-interference 2×4 MMI coupler where no waveguide intersection in coupling to photo detectors is required. The proposed device exhibited 90º hybrid response with low phase deviation (|Deltaphi|<5deg) over 94-nm-wide spectral range.