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Low-complexity real-time coherent TX/RX prototype for UD-WDM access networks

Low-complexity real-time coherent TX/RX prototype for UD-WDM access networks

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18th Italian National Conference on Photonic Technologies (Fotonica 2016) — Recommend this title to your library

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  • DOI:  10.1049/cp.2016.0865
  • ISBN: 978-1-78561-268-8
  • Location: Rome, Italy
  • Conference date: 6-8 June 2016
  • Format: PDF
A coherent TX-RX prototype is presented including a real-time polarization-independent coherent receiver (PI-RX) with analog processing (no DSP). The prototype, realised by means of common DFBs and commercially available RF electronic ICs, is targeted for use on a 6.25 GHz Ultra Dense Wavelength Division Multiplexed (UD-WDM) grid and features up to 50 dB of loss budget. Robustness of the PI-RX against crosstalk from coexistent adjacent channels is demonstrated. Using two such prototypes, bidirectional transmission in a 8x1.25G UD-WDM system configuration with 6.25 GHz frequency spacing and 45 dB ODN loss is shown with channel selection by means of thermal tuning of the local oscillator.

Inspec keywords: optical information processing; optical transceivers; passive optical networks; oscillators; wavelength division multiplexing; distributed feedback lasers; optical crosstalk; integrated optics; integrated optoelectronics; optical losses; channel spacing

Subjects: Optical communication equipment; Optical communication devices, equipment and systems; Integrated optics; Optical information, image formation and analysis; Optical fibre networks; Integrated optoelectronics; Multiplexing and switching in optical communication; Optical, image and video signal processing; Integrated optics; Subscriber loops

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