Measurement of Gain Tilt and Its Contribution to Composite Second-Order Distortion in the Analog-Digital Transmission Systems with Er/Yb Fiber Amplifiers
Applied Optics, Vol. 43, Issue 8, pp. 1747-1751 (2004)
http://dx.doi.org/10.1364/AO.43.001747
Acrobat PDF (111 KB)
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
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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