Frontiers of Optoelectronics >
FSK signal generation with wavelength reuse capability in 8 Gbit/s radio over fiber systems
Received date: 17 Apr 2013
Accepted date: 06 Jun 2013
Published date: 05 Sep 2013
Copyright
In this paper, a technique was numerically implemented to generate a frequency shift keying (FSK) radio-over-fiber (RoF) signal in optical domain. Due to the oscillator free generation of FSK signal, this scheme is highly stable with reduced complexity and extremely cost effective. The remote heterodyne detection method was used to detect the signal, where beating occurs to detect the FSK signal. With this scheme, it is able to efficiently generate FSK signal in the range of 60 and 75 GHz at 8 Gbit/s and effectively transmit it over 80 km link without degrading the signal shape and quality. The nonlinear threshold (NLT) point of the system has also been numerically analyzed to estimate the nonlinear tolerance of the system. Besides, the impact of transmission distance and polarization mode dispersion (PMD) was evaluated. Furthermore, the wavelength reuse for the uplink was implemented in the scheme by reusing the same wavelength for uplink that was used for signal generation at downlink. The whole process was performed in optical domain. Thus this scheme is very cost effective as the overall architecture of RoF system is simplified.
Lubna NADEEM , Rameez ASIF . FSK signal generation with wavelength reuse capability in 8 Gbit/s radio over fiber systems[J]. Frontiers of Optoelectronics, 2013 , 6(3) : 303 -311 . DOI: 10.1007/s12200-013-0331-0
1 |
He J, Chen L, Dong Z, Wen S, Yu J. Full-duplex radio-over-fiber system with photonics frequency quadruples for optical millimeter-wave generation. Optical Fiber Technology, 2009, 15(3): 290-295
|
2 |
Park C S, Lee C G, Park. C S. Photonic frequency up-conversion based on stimulated brillouin scattering. Photonics Technology Letter, 2007, 19(10): 777-779
|
3 |
Shin M, Kumar P. Optical microwave frequency up-conversion via a frequency doubling optoelectronic oscillator. Photonics Technology Letters, 2007, 19(21): 1726-1728
|
4 |
Larrode M G, Koonen A M J, Olmos J J V, Verdurmen E J M. Microwave signal generation and transmission based on optical frequency multiplication with a polarization interferometer. Journal of Lightwave Technology, 2007, 25(6): 1372-1378
|
5 |
Chi H, Zeng F, Yao J P. Photonic generation of microwave signals based on pulse shaping. Photonics Technology Letter, 2007, 19(9): 668-670
|
6 |
Mumtaz A, Islam M K, Zafrullah M. Wavelength reuse for uplink on dense wave-division multiplexing single-fiber ring for radio over fiber broadband systems with downlink signal generation in optical domain. Optical Engineering, 2011, 50(10): 105002-1-105002-8
|
7 |
Hong C, Zhang C, Duan J, Hu W W, Xu A, Chen Z Y. Bidirectional radio-over-fiber systems with SSB modulation and wavelength reuse based on injection-locked semiconductor lasers. Chinese Optics Letters, 2010, 8(11): 1040-1042
|
8 |
Chen L, Shao Y F, Lei X, Wen H, Wen S C. A novel radio-over-fiber system with wavelength reuse for upstream data connection. Photonics Technology Letters, 2007, 19(6): 387-389
|
9 |
Zhang C, Duan J, Li J H, Hu W W, Li H B, Wu H Q, Chen Z Y. Bidirectional 60-GHz radio-over-fiber systems with downstream OFDMA and wavelength reuse upstream SC-FDMA. Optics Express, 2010, 18(18): 19429-19437
|
/
〈 | 〉 |