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Maximizing spectral utilization in WDM systems by microwave domain filtering of tandem single sidebands

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5 Author(s)
Narasimha, A. ; Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA ; Xuejun Meng ; Lam, C.F. ; Wu, M.C.
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We present an optical tandem single-sideband receiver that enables the detection of signals having different information in the two sidebands of the same optical carrier. The technique relies on the use of a dual-electrode Mach-Zehnder modulator and achieves heterodyne detection without the use of an optical local oscillator. Sharp filtering requirements are met in the electrical domain, eliminating the need for wasteful guardbands

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:49 ,  Issue: 10 )