Time-stretch oscilloscope with dual-channel differential detection front end for monitoring of 100 Gb/s return-to-zero differential quadrature phase-shift keying data |
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Authors: | Fard Ali Yang Jeng-Yuan Buckley Brandon Wang Jian Chitgarha Mohammad R Zhang Lin Willner Alan E Jalali Bahram |
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Affiliation: | Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA. ali.fard@ucla.edu |
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Abstract: | Optical performance monitoring of high-capacity networks is one of the enabling technologies of future reconfigurable optical switch networks. In such networks, rapid performance evaluation of data streams becomes challenging due to the use of advanced modulation formats and high data rates. The time-stretch enhanced recording oscilloscope offers a potential solution to monitoring high-rate data in a practical time scale. Here we demonstrate an architecture with a differential detection front end for simultaneous I/Q data monitoring of a 100 gigabits/s return-to-zero differential quadrature phase-shift keying signal. This demonstration shows the potential of this technology for rapid performance monitoring of high-rate optical data streams that employ advanced modulation formats. |
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