Demonstration and Analysis of Single Sideband Photonic Time-Stretch System

Yan HAN  Bahram JALALI  Jeehoon HAN  Byoungjoon SEO  Harold FETTERMAN  

IEICE TRANSACTIONS on Electronics   Vol.E86-C   No.7   pp.1276-1280
Publication Date: 2003/07/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Recent Progress in Microwave and Millimeter-wave Photonics Technologies)
Category: Signal Generation and Processing Based on MWP Techniques
microwave photonics,  analog-to-digital conversion,  optical signal processing,  analog optical link,  

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We report on the first demonstration of single sideband (SSB) modulated time stretch system. In addition, we present an analytical model relating the system performance to the phase and amplitude mismatches in the SSB modulator. The results show that, fortuitously, the system is tolerant to such mismatches. In particular, using commercially available components,the dispersion induced power penalty can be kept below 2.5 dB over 4-20 GHz bandwidth for any stretch factor. The experiments demonstrate 120 Gsample/s real-time capture of a 20 GHz SSB-modulated microwave signal.