Hybrid Access Network Integrated With Wireless Multilevel Vector and Wired Baseband Signals Using Frequency Doubling and No Optical Filtering

Author

Po-Tsung Shih ; Chun-Ting Lin ; Wen-Jr Jiang ; Yu-Hung Chen ; Chen, J. ; Sien Chi

Author_Institution

Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu

Volume

21

Issue

13

fYear

2009

fDate

7/1/2009 12:00:00 AM

Firstpage

857

Lastpage

859

Abstract

This letter experimentally demonstrated a hybrid access network which supports both radio-over-fiber and fiber-to-the-x systems. A 20-GHz radio-frequency (RF) 312.5-MSymbol/s M-ary phase-shift keying (PSK) signal and a baseband (BB) 1.25-Gb/s on-off keying signal are simultaneously generated and transmitted over an identical distributed infrastructure. The wired BB signal is compatible with the existing passive optical network (PON) system, and the wireless RF PSK signal can also share the same distributed infrastructure. The proposed system has no RF fading issue, no narrowband optical filter at remote node to separate the RF and BB signals, and can carry vector signals. Moreover, a frequency doubling for optical RF signal generation is achieved to reduce the bandwidth requirement of the transmitter. After transmission over 25-km standard signal-mode fiber, the receiver sensitivity penalties are less than 0.5 dB for both the RF and BB channels.

Keywords

amplitude shift keying; microwave photonics; optical fibre subscriber loops; optical harmonic generation; optical receivers; optical transmitters; phase shift keying; radio-over-fibre; telecommunication channels; M-ary phase-shift keying signal; PON system; baseband channel; fiber-to-the-x system; hybrid access network; on-off keying signal; optical RF signal generation; optical frequency doubling; optical receiver; optical transmitter; passive optical network; radio-over-fiber; wired baseband signal; wireless multilevel vector; Baseband; Integrated optics; Optical fiber networks; Optical filters; Optical harmonic generation; Optical receivers; Optical transmitters; Passive optical networks; RF signals; Radio frequency; External modulation; fiber-to-the-home; optical access networks; optical communication; radio-over-fiber (RoF);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2009.2016574

Filename

5071737