Title :
Dynamic-Range Enhancement and Linearization in Electrooptically Modulated Coherent Optical Links
Author :
Hung, Yu-Chueh ; Bortnik, Bartosz ; Fetterman, Harold R.
Author_Institution :
California Univ., Los Angeles
Abstract :
We present a general analysis of various electrooptic-modulation configurations on the system performance of a coherent analog optical link. We evaluate the dependence of the modulation scheme of the optical modulator and its properties on the system dynamic range and linearity. Linearization of a coherent optical link based on extending the length of a directional-coupler modulator is also described, illustrating the unique considerations when linearizing a coherent link. System-level modeling of an analog coherent optical link under different modulation configurations is presented.
Keywords :
directional couplers; electro-optical modulation; microwave photonics; radio-over-fibre; coherent analog optical link; directional-coupler modulator; dynamic-range enhancement; electrooptic-modulation; linearized modulator; suppressed-carrier modulation; system-level modeling; Dynamic range; Electrooptic modulators; Fiber nonlinear optics; Nonlinear optics; Optical distortion; Optical fiber communication; Optical mixing; Optical modulation; Optical receivers; Optical sensors; Coherent detection; electrooptic modulation; linearized modulator; suppressed-carrier modulation;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2007.907747
