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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 8 — Mar. 10, 2004
  • pp: 1747–1751

Measurement of gain tilt and its contribution to composite second-order distortion in the analog–digital transmission systems with Er/Yb fiber amplifiers

Puneit Dua, Niloy K. Dutta, and James Jaques  »View Author Affiliations


Applied Optics, Vol. 43, Issue 8, pp. 1747-1751 (2004)
http://dx.doi.org/10.1364/AO.43.001747


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Abstract

Fiber-optic-based analog or digital community antenna television systems experience composite second-order (CSO) distortion 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 with a high-power erbium/ytterbium-codoped fiber amplifier has been experimentally measured and its contribution to the CSO distortion of the system is evaluated. The results are in good agreement when compared with the direct measurement of the CSO distortion of the transmission system with and without the amplifier. The dependence of the gain tilt on the modulation frequency and wavelength of the input light is also investigated.

© 2004 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2410) Fiber optics and optical communications : Fibers, erbium
(060.4230) Fiber optics and optical communications : Multiplexing
(060.4510) Fiber optics and optical communications : Optical communications

History
Original Manuscript: June 30, 2003
Revised Manuscript: October 21, 2003
Published: March 10, 2004

Citation
Puneit Dua, Niloy K. Dutta, and James Jaques, "Measurement of gain tilt and its contribution to composite second-order distortion in the analog–digital transmission systems with Er/Yb fiber amplifiers," Appl. Opt. 43, 1747-1751 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-8-1747

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