Extended-reach access network with downstream radio-over-fiber (ROF) signal and upstream NRZ signal using orthogonal-WDM

We propose and demonstrate an extended-reach radio-over-fiber (ROF) access network. The double-sideband carrier-suppressed (DSCS) optical signal carries the downstream ROF signal. A continuous wave (CW) optical carrier is embedded into the DSCS optical signal and transmitted to the colorless optical networking unit (ONU)/remote antenna unit (RAU) for the upstream signal generation. At the ONU/RAU, the upstream data is orthogonally wavelength division multiplexed (WDM) onto this CW carrier; hence mitigating the cross-talk generated by the downstream signal. Analyses about the optimum power difference between the downstream and the CW signals; as well as the split-ratio are also preformed.

[1]  Gee-Kung Chang,et al.  A Novel Lightwave Centralized Bidirectional Hybrid Access Network: Seamless Integration of RoF With WDM-OFDM-PON , 2011, IEEE Photonics Technology Letters.

[2]  Sien Chi,et al.  WDM extended reach passive optical networks using OFDM-QAM. , 2008, Optics express.

[3]  David Payne,et al.  The future of fibre access systems? , 2002 .

[4]  I. Monroy,et al.  100 Gbit/s hybrid optical fiber-wireless link in the W-band (75-110 GHz). , 2011, Optics express.

[5]  Peng-Chun Peng,et al.  Direct CATV modulation and phase remodulated radio-over-fiber transport system. , 2010, Optics express.

[6]  A. Nirmalathas,et al.  Hybrid Multiplexing of Multiband Optical Access Technologies Towards an Integrated DWDM Network , 2006, IEEE Photonics Technology Letters.

[7]  C. Yeh,et al.  Rayleigh Backscattering Mitigation Using Wavelength Splitting for Heterogeneous Optical Wired and Wireless Access , 2010, IEEE Photonics Technology Letters.

[8]  Jianjun Yu,et al.  Novel Optical-Wireless Access Network Architecture for Simultaneously Providing Broadband Wireless and Wired Services , 2006 .

[9]  A. Ellis,et al.  Spectral density enhancement using coherent WDM , 2005, IEEE Photonics Technology Letters.

[10]  Guifang Li,et al.  Orthogonal Wavelength-Division Multiplexing Using Coherent Detection , 2007, IEEE Photonics Technology Letters.

[11]  Chi-Wai Chow,et al.  Studies of OFDM signal for broadband optical access networks , 2010, IEEE Journal on Selected Areas in Communications.

[12]  C. H. Wang,et al.  100 GHz ultra-wideband (UWB) fiber-to-the-antenna (FTTA) system for in-building and in-home networks. , 2010, Optics express.

[13]  Lin Chen,et al.  Fiber Dispersion Influence on Transmission of the Optical Millimeter-Waves Generated Using LN-MZM Intensity Modulation , 2007, Journal of Lightwave Technology.