Title :
Maximizing spectral utilization in WDM systems by microwave domain filtering of tandem single sidebands
Author :
Narasimha, Adithyaram ; Meng, Xuejun ; Lam, Cedric F. ; Wu, Ming C. ; Yablonovitch, Eli
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
10/1/2001 12:00:00 AM
Abstract :
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
Keywords :
electro-optical modulation; heterodyne detection; microwave filters; microwave photonics; optical receivers; optical signal detection; wavelength division multiplexing; WDM system; dual-electrode Mach-Zehnder modulator; heterodyne detection; microwave domain filtering; optical tandem single-sideband receiver; signal detection; spectral efficiency; Amplitude modulation; Filtering; Local oscillators; Microwave filters; Optical filters; Optical mixing; Optical modulation; Optical receivers; Optical transmitters; Wavelength division multiplexing;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
