Browse > Article

Compensation for Distorted Signals by using Optimal Pump Light Power in WDM Systems with Non-midway Optical Phase Conjugator  

Lee Seong-Real (Div. of Marine Electro. and Comm. Eng., Mokpo National Maritime University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.7A, 2005 , pp. 542-549 More about this Journal
Abstract
In this paper, the optimal pump light power of optical phase conjugator (OPC) and the compensation characteristics of distorted WDM channel signals are numerically investigated, when the OPC with highly-nonlinear dispersion shifted fiber (HNL-DSF) not be placed at the mid-way of total transmission length. The total dispersion of former half section and latter half section is assumed to be same each other in this approach. It is confirmed that, in WDM transmission systems with OPC deviated from the mid-way, the pump light power for best compensation must be flexible selected depending on the OPC position. This optimal pump light power is gradually increased as the OPC is gradually closer to the receiver. Consequently, it is possible to establish the compensation system independent on the OPC position by setting optimal pump light power connected with the OPC position.
Keywords
Optical phase conjugator (OPC); Highly-nonlinear dispersion Shifted fiber (HNL-DSF); Optimal pump light power; Mid-span spectral inversion (MSSI);
Citations & Related Records
연도 인용수 순위
  • Reference
1 K. Kikuchi and C. Lorattanasane, 'Compensation for pulse waveform distortion in ultra-long distance optical communication systems by using midway optical phase conjugator', IEEE Photon. Technol. Lett., Vol. 6, pp. 104-105, 1994.   DOI   ScienceOn
2 S. Watanabe and M. Shirasaki, 'Exact compensation for both chromatic dispersion and Kerr effect in a transmission fiber using optical phase conjugation', J. Lightwave Technol., Vol. 14, No.3, pp. 243 -248, 1996   DOI   ScienceOn
3 K. Inoue, 'Four-wave mixing in an optical fiber in the zero-dispersion wavelength region', J. Lightwave Technol., Vol. 10, No. 11, pp. 1553-1561, 1992   DOI   ScienceOn
4 F. Forghieri, R. W. Tkach and A. R. Chraplyvy, 'WDM systems with unequally spaced channels', J. Lightwave Technol., Vol. 13, No.5, pp. 889-897, 1995   DOI   ScienceOn
5 G. P. Agrawal, Fiber-optic communication systems, John Wiley & Sons, Inc., 2002
6 Seong-Real Lee and S. E. Cho, 'The compensation characteristics of WDM channel distortion dependence on NRZ format and RZ format', J. of Korea Electromag. Eng. Society (Korean), Vol. 14, No. 11, pp. 1184-1190, 2003
7 N. Shibata, K. Nosu, K. Iwashita and Y. Azuma, 'Transmission limitations due to fiber nonlinearities in optical FDM systems', IEEE J. Select. Areas in Comm., Vol. 8, No.6, pp 1068-1077, 1990   DOI   ScienceOn
8 Seong-Real Lee and S. E. Cho, 'Pump light power of wideband optical phase conjugator using highly nonlinear dispersion shifted fiber in WDM systems with MSSI', The J. of the Korean Inst. of Comm. Sciences (Korean), Vol. 30, No. 3A, pp. 168-177, 2005
9 G. P. Agrawal, Nonlinear Fiber Optics, Academic Press, 2001
10 A. R. Chrapiyvy, 'Limitations on lightwave communications imposed by optical-fiber nonlinearities', J. Lightwave Technol., Vol. 8, No. 10, pp 1548-1557, 1990   DOI   ScienceOn