Simultaneous DPSK demodulation and chirp management using delay interferometer in symmetric 40-Gb/s capability TWDM-PON system.

We propose a symmetric 40-Gb/s aggregate rate time and wavelength division multiplexed passive optical network (TWDM-PON) system with the capability of simultaneous downstream differential phase shift keying (DPSK) signal demodulation and upstream signal chirp management based on delay interferometer (DI). With the bi-pass characteristic of DI, we experimentally demonstrate the bidirectional transmission of signals at 10-Gb/s per wavelength, and achieve negligible power penalties after 50-km single mode fiber (SMF). For the uplink transmission with DI, a ~11-dB optical power budget improvement at a bit error ratio of 1e-3 is obtained and the extinction ratio (ER) of signal is also improved from 3.4 dB to 13.75 dB. Owing to this high ER, the upstream burst-mode transmitting is successfully presented in term of time-division multiplexing. Moreover, in our experiment, a ~38-dB power budget is obtained to support 256 users with 50-km SMF transmission.

[1]  Yuanqiu Luo,et al.  Time- and Wavelength-Division Multiplexed Passive Optical Network (TWDM-PON) for Next-Generation PON Stage 2 (NG-PON2) , 2013, Journal of Lightwave Technology.

[2]  R P Giddings,et al.  Significant improvements in optical power budgets of real-time optical OFDM PON systems. , 2010, Optics express.

[3]  M Martinelli,et al.  Remotely-pumped network-embedded self-tuning transmitter for 80-Gb/s conventional hybrid TDM/WDM PON with 256-split. , 2013, Optics express.

[4]  Chun-Kit Chan,et al.  An optical network unit for WDM access networks with downstream DPSK and upstream remodulated OOK data using injection-locked FP laser , 2003, IEEE Photonics Technology Letters.

[5]  Hoon Kim,et al.  Transmission of 10-Gb/s Directly Modulated RSOA Signals in Single-Fiber Loopback WDM PONs , 2011, IEEE Photonics Technology Letters.

[6]  Ton Koonen,et al.  TDM-PON with 30 Gb/s D8PSK downstream and 10 Gb/s OOK upstream based on a digital incoherent receiver. , 2012, Optics express.

[7]  Weisheng Hu,et al.  Experimental demonstration of a symmetric 40-Gb/s TWDM-PON , 2013, 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC).

[8]  Chao Lu,et al.  Bidirectional Hybrid OFDM-WDM-PON System for 40-Gb/s Downlink and 10-Gb/s Uplink Transmission Using RSOA Remodulation , 2012, IEEE Photonics Technology Letters.

[9]  Minho Song,et al.  Fiber grating sensor array interrogation with time-delayed sampling of a wavelength-scanned fiber laser , 2004 .

[10]  Weisheng Hu,et al.  Symmetric 40-Gb/s TWDM-PON With 39-dB Power Budget , 2013, IEEE Photonics Technology Letters.

[11]  Jin Wang,et al.  Accurate bit-error-ratio computation in nonlinear CRZ-OOK and CRZ-DPSK systems , 2004, IEEE Photonics Technology Letters.

[12]  Takashi Mizuochi,et al.  A comparative study of DPSK and OOK WDM transmission over transoceanic distances and their performance degradations due to nonlinear phase noise , 2003 .

[13]  Jin Wang,et al.  Impact of chromatic and polarization-mode dispersions on DPSK systems using interferometric demodulation and direct detection , 2004, Journal of Lightwave Technology.

[14]  A.H. Gnauck,et al.  Optical phase-shift-keyed transmission , 2005, Journal of Lightwave Technology.

[15]  Yuanqiu Luo,et al.  Demonstration of a 40Gb/s time and Wavelength Division Multiplexed passive optical network prototype system , 2012, OFC/NFOEC.

[16]  Weisheng Hu,et al.  An upstream multi-wavelength shared PON based on tunable self-seeding Fabry-Pérot laser diode for upstream capacity upgrade and wavelength multiplexing. , 2011, Optics express.

[17]  C. Yeh,et al.  Using Downstream DPSK and Upstream Wavelength-Shifted ASK for Rayleigh Backscattering Mitigation in TDM-PON to WDM-PON Migration Scheme , 2013, IEEE Photonics Journal.

[18]  H. Takahashi,et al.  40-km reach symmetric 40-Gbit/s λ-tunable WDM/TDM-PON using synchronized gain-clamping SOA , 2013, 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC).

[19]  A. Enard,et al.  10 Gbit/s modulation of Reflective SOA without any electronic processing , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[20]  Frank Effenberger,et al.  XG-PON1 versus NG-PON2: Which one will win? , 2012, 2012 38th European Conference and Exhibition on Optical Communications.