Title :
D8PSK/OOK bidirectional transmission over a TDM-PON
Author :
Sotiropoulos, Nikolaos ; Koonen, Ton ; De Waardt, Huug
Author_Institution :
Dept. of Electr. Eng., Eindhoven Univ. of Technol., Eindhoven, Netherlands
Abstract :
Transmission of a 7.5 Gb/s Differential 8 Phase-Shift Keying (D8PSK) signal, capable of encoding three bits per symbol per polarization, has been demonstrated over an amplified Time-Division Multiplexed Passive Optical Network (TDM-PON) for the first time. The incoherent multilevel receiver is laser-free and utilizes DSP to reduce complexity in the optical domain. A Directly Modulated Laser (DML) operating at 2.5 Gb/s provided a low-cost upstream channel. The performance of both channels after transmission over 25 km of fiber has been evaluated and the effect of bidirectional propagation over the common fiber has been investigated. Experimental results show satisfactory receiver sensitivity, indicating the format´s suitability as an enabler for very high bit rates in future TDM-PONs.
Keywords :
amplitude shift keying; passive optical networks; time division multiplexing; D8PSK signal; D8PSK/OOK bidirectional transmission; DML; DSP; TDM-PON; bidirectional propagation; bit rate 2.5 Gbit/s; bit rate 7.5 Gbit/s; complexity reduction; differential 8 phase-shift keying; directly modulated laser; encoding; laser-free; low-cost upstream channel; multilevel receiver; optical domain; polarization; receiver sensitivity; time-division multiplexed passive optical network; Modulation; Optical fiber amplifiers; Optical receivers; Optical transmitters; Passive optical networks; Differential Phase-Shift Keying; differential detection; multilevel modulation; passive optical networks;
Conference_Titel :
Transparent Optical Networks (ICTON), 2012 14th International Conference on
Conference_Location :
Coventry
Print_ISBN :
978-1-4673-2228-7
Electronic_ISBN :
2161-2056
DOI :
10.1109/ICTON.2012.6253937
