We have estimated the effective α-parameter of the extended transmitters in the presence of self-phase modulation (SPM) induced chirp. The α-parameter of transmitters is effectively lowered to about 1, when the SPM effect is included, compared to the α-parameter of the transmitter alone. This lowered effective α-parameter has improved the transmission performance significantly regardless the transmitter is operated with positive or negative chirp. The SPM-induced effective α-parameter can be used as a design parameter for the high-speed (10 Gb/s) transmission systems.
Bibliographical noteFunding Information:
Manuscript received February 17, 1998; revised April 3, 1998. The work of J. Jeong was supported by KOSEF-OERC-98K3-0809-02-05-1 at KAIST. J. Jeong, S. K. Kim, and T.-W. Oh are with the Department of Radio Engineering, Korea University 1, Sungbuk-Ku, Seoul 136-701, Korea. Y. K. Park is with Lucent Technologies, Bell Laboratories, Murray Hill, NJ 07904 USA. T. V. Nguyen and O. Mizuhara are with Lucent Technologies, Bell Laboratories, Breinigsville, PA 18031 USA. Publisher Item Identifier S 1041-1135(98)06273-9.
- Chirp modulation
- Optical communication
- Optical fiber dispersion
- Optical propagation in nonlinear media
- Optical transmitters
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering