[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