Title :
Dynamic Range Enhancement in Analog Optical Links with a Balanced Modulation and Detection Scheme
Author :
Marpaung, D.A.I. ; Roeloffzen, C.G.H. ; van Etten, W.
Author_Institution :
Fac. of Electr. Eng., Twente Univ., Enschede
Abstract :
A novel noise reduction scheme called Balanced Modulation and Detection (BMD) is proposed. In this scheme, the modulating RF signal is half-wave rectified in the optical domain, eliminating the DC optical power resulting from pre-biasing of the optical source. A link model employing this scheme has been developed and key parameters describing link performance have been calculated. A comparison with an externally-modulated link called the class-AB (CAB) photonic link is carried out. Improvement in link SNR and dynamic range up to 8.7 dB and 18 dB, respectively, are obtained
Keywords :
demodulation; microwave links; microwave photonics; optical communication; optical links; optical modulation; shot noise; BMD; DC optical power; RF signal modulation; analog optical links; balanced detection; balanced modulation; class-AB photonic link; externally-modulated link; half-wave rectification; laser intensity noise; microwave photonics; noise reduction; shot noise; Dynamic range; Laser noise; Noise reduction; Nonlinear optics; Optical distortion; Optical fiber communication; Optical modulation; Optical noise; RF signals; Signal to noise ratio; Analog links; dynamic range; laser intensity noise; low bias; microwave photonics; noise reduction; shot noise;
Conference_Titel :
Microwave Photonics, 2006. MWP '06. International Topical Meeting on
Conference_Location :
Grenoble
Print_ISBN :
1-4244-0203-4
Electronic_ISBN :
1-4244-0204-2
DOI :
10.1109/MWP.2006.346551
