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Conferences > PEO > 1991 > WB > WB2

Display of Microwave Waveform Via a Low Frequency Replica Using an Optical Phase-Locking and Sampling Technique

Ming G. Li, Sheng-lung L. Huang, Chi H. Lee, and Hing-Loi A. Hung

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Abstract

Waveform measurement and dispay are very important for characterizing oscillator, amplifier or other device output performance. At frequencies below 400 MHz, conventional real time oscilloscope is the usual means to study this kind of waveform, while above 400 MHz, sampling scope takes this place. At present, conventional RF/microwave sampling scope has a maximum bandwidth of 20 GHz. A superconductive sampling scope, (by Hypres, PSP-1000) has extended the bandwidth up to 70 GHz, but this instrument is designed to operate at cryogenic temperature, cooled with liquid helium during normal operation.

© 1991 Optical Society of America

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