Measurement of gain tilt and its contribution to CSO in the analog/digital transmission systems with Er/Yb fiber amplifiers

Puneit Dua; Qiang Wang; Niloy K. Dutta; James J. Jaques

doi:10.1117/12.475139

8 July 2002 Measurement of gain tilt and its contribution to CSO in the analog/digital transmission systems with Er/Yb fiber amplifiers

Puneit Dua, Qiang Wang, Niloy K. Dutta, James J. Jaques

Author Affiliations +

Proceedings Volume 4872, Optical Transmission Systems and Equipment for WDM Networking; (2002) https://doi.org/10.1117/12.475139
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

Fiber optic based analog and/or digital CATV systems experience composite second order distortion (CSO) caused by the interaction between the gain tilt of the doped fiber amplifier and the laser chirp due to modulation. The gain tilt for an analog/digital transmission system using a high power Er-Yb co-doped fiber amplifier has been experimentally measured and its contribution to the CSO of the transmission system is evaluated. The results are in good agreement when compared with the direct measurement of the CSO of the system with and without the amplifier. The dependence of the gain tilt on the input light modulation frequency and the input light wavelength is also investigated.

Citation Download Citation

Puneit Dua, Qiang Wang, Niloy K. Dutta, and James J. Jaques "Measurement of gain tilt and its contribution to CSO in the analog/digital transmission systems with Er/Yb fiber amplifiers", Proc. SPIE 4872, Optical Transmission Systems and Equipment for WDM Networking, (8 July 2002); https://doi.org/10.1117/12.475139

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