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C/L-band colorless ONU based on polymer bidirectional optical subassembly

 
: Zhang, Z.; Felipe, D. de; Brinker, W.; Kleinert, M.; Maese-Novo, A.; Moehrle, M.; Zawadzki, C.; Keil, N.

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Journal of Lightwave Technology 33 (2015), No.6, pp.1230-1234
ISSN: 0733-8724
English
Journal Article
Fraunhofer HHI ()

Abstract
A colorless ONU is demonstrated on the polymer-based hybrid integration platform. Polymer Bragg gratings provide power-efficient wavelength tuning over the C-band. Thin-film element is inserted in the waveguide circuits for C/L band splitting and bi-directional transmission. On-chip U-groove and 45 degrees mirror allow submount-free and passive attachment of optical fiber and photo detectors, respectively. Arrays of deep-etched air trenches are introduced for cross-talk suppression. With an optical wavelength rejection level larger than 34 dB, 10-Gb/s bidirectional transmission and detection are achieved.

: http://publica.fraunhofer.de/documents/N-336543.html