Title :
Self-Homodyne Detection-Based Fully Coherent Reflective PON Using RSOA and Simplified DSP
Author :
Vujicic, Zoran ; Luis, Ruben S. ; Delgado Mendinueta, Jose Manuel ; Shahpari, Ali ; Pavlovic, Natasa B. ; Puttnam, Benjamin J. ; Kamio, Yukiyoshi ; Nakamura, Moriya ; Wada, Naoya ; Teixeira, Antonio
Author_Institution :
Dept. de Eletron., Telecomun. e InformaticaInstituto de Telecomun., Univ. of Aveiro, Aveiro, Portugal
Abstract :
We investigate the power budget of a fully coherent reflective passive optical network, based on self-coherent upstream (US) and self-homodyne downstream (DS) detection schemes. We consider, for US, both binary phase-shift keyed (BPSK) and quadrature phase-shift keyed (QPSK) at 1 GBd generated by direct modulation of a low-cost reflective semiconductor optical amplifier having 1-GHz electrical bandwidth and using simplified digital signal processing (DSP). We find that the penalty of increasing the order of US modulation format from BPSK to QPSK for higher capacity can be reduced to 1 dB by means of DS digital spectral shifting and US static postequalization.
Keywords :
homodyne detection; optical communication equipment; optical information processing; optical modulation; passive optical networks; quadrature phase shift keying; semiconductor optical amplifiers; BPSK; QPSK; RSOA; bandwidth 1 GHz; binary phase-shift keying; direct modulation; downstream digital spectral shifting; electrical bandwidth; fully coherent reflective passive optical network; power budget; quadrature phase-shift keying; reflective semiconductor optical amplifier; self-coherent upstream detection schemes; self-homodyne detection-based fully coherent reflective PON; self-homodyne downstream detection schemes; simplified DSP; simplified digital signal processing; upstream static postequalization; Binary phase shift keying; Bit error rate; Digital signal processing; Optical network units; Passive optical networks; Receivers; Polarization Multiplexing; Reflective Semiconductor Optical Amplifier (RSOA); Reflective semiconductor optical amplifier (RSOA); Self-Coherent Detection (SCD); Self-Homodyne Detection (SHD); polarization multiplexing; self-coherent detection (SCD); self-homodyne detection (SHD);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2457778
