Title :
C/L-Band Colorless ONU Based on Polymer Bidirectional Optical Subassembly
Author :
Ziyang Zhang ; de Felipe, David ; Brinker, Walter ; Kleinert, Moritz ; Maese-Novo, Alejandro ; Moehrle, Martin ; Zawadzki, Crispin ; Keil, Norbert
Author_Institution :
Fraunhofer Inst. for Telecommun., Heinrich-Hertz-Inst., Berlin, Germany
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° 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.
Keywords :
Bragg gratings; crosstalk; interference suppression; optical fibre networks; passive optical networks; wavelength division multiplexing; C-band; C/L band splitting; C/L-band colorless ONU; WDM-PON; bi-directional transmission; bidirectional detection; bidirectional transmission; bit rate 10 Gbit/s; cross-talk suppression; deep-etched air trenches; on-chip U-groove; optical fiber; optical wavelength rejection level; photo detectors; polymer bidirectional optical subassembly; polymer bragg gratings; polymer-based hybrid integration platform; power-efficient wavelength; thin-film element; waveguide circuits; wavelength division multiplexingpassive optical networks; Crosstalk; Fiber lasers; Optical fibers; Optical network units; Polymers; Tuning; Hybrid photonic integration; ONU; WDM-PON; hybrid photonic integration; optical network unit (ONU); tunable laser; wavelength division multiplexing- passive optical networks (WDM-PON);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2014.2377092
