WDM PON using 10-Gb/s DPSK downstream and re-modulated 10-Gb/s OOK upstream based on SOA

Abstract

A signal remodulation scheme of 10-Gb/s differential phase-shift keying (DPSK) downstream and 10-Gb/s on-off keying (OOK) upstream using a semiconductor optical amplifier (SOA) and a Mach-Zehnder intensity modulator (MZ-IM) at the optical networking unit (ONU) side for wavelength division multiplexed passive optical network (WDM PON) is proposed. Simulation results indicate that error-free operation can be achieved in a 20-km transmission, and the receiver sensitivity of return-to-zero differential phase-shift keying (RZ-DPSK) is higher than nonreturn-to-zero differential phase-shift keying (NRZ-DPSK) in the proposed scheme.

Keywords

wavelength division multiplexed passive optical network (WDM PON) / differential phase-shift keying (DPSK) / semiconductor optical amplifier (SOA)

References

[1] Jung D K, Kim H, Han K H, Chung Y C. Spectrum-sliced bidirectional passive optical network for simultaneous transmission of WDM and digital broadcast video signals. Electronics Letters, 2001, 37(5): 308–309

[2] Hung W, Chan C K, Chen L K, Tong F. An optical network unit for WDM access networks with downstream DPSK and upstream remodulated OOK data using injection-locked FP laser. IEEE Photonics Technology Letters, 2003, 15(10): 1476–1478

[3] Takesue H, Sugie T. Wavelength channel data rewrite using saturated SOA modulator for WDM networks with centralized light sources. Journal of Lightwave Technology, 2003, 21(11): 2546–2556

[4] Healey P, Townsend P, Ford C, Johnston L, Townley P, Lealman I, Rivers L, Perrin S, Moore R. Spectral slicing WDM-PON using wavelength-seeded reflective SOAs. Electronics Letters, 2001, 37(19): 1181–1182

[5] Chanclou P, Payoux F, Soret T, Genay N, Brenot R, Blache F, Goix M, Landreau J, Legouezigou O, Mallecot F. Demonstration of RSOA-based remote modulation at 2.5 and 5 Gbit/s for WDM PON. In: Proceedings of Optical Fiber Communication Conference. 2007, OWD1

[6] Cho K Y, Takushima Y, Chung Y C. 10-Gb/s operation of RSOA for WDM PON. IEEE Photonics Technology Letters, 2008, 20(18): 1533–1535

[7] Settembre M, Matera F, Hagele V, Gabitov N, Mattheus A W, Turitsyn S K. Cascaded optical communication systems with in-line semiconductor optical amplifiers. Journal of Lightwave Technology, 1997, 15(6): 962–967

[8] Li Z, Dong Y, Mo J, Wang Y, Lu C. 1050-km WDM transmission of 8×10.709 Gb/s DPSK signal using cascaded in-line semiconductor optical amplifier. IEEE Photonics Technology Letters, 2004, 16(7): 1760–1762

Acknowledgements

This work was supported by the National High Technology Research and Development Programs of China (No. 2007AA01Z229) from the Ministry of Science and Technology of China.

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg