130-GSa/s photonic analog-to-digital converter with time stretch preprocessor

In this letter, we demonstrate a photonic analog-to-digital converter with time stretch (TS) preprocessor that has a sampling rate of 130 GSa/s. The system has a signal-to-noise ratio (SNR) exceeding seven effective number of bits over a 1-GHz bandwidth at 18 GHz. We present an analytical model of t...

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Bibliographic Details
Published in:IEEE photonics technology letters 2002-05, Vol.14 (5), p.684-686
Main Authors: Bhushan, A.S., Kelkar, P.V., Jalali, B., Boyraz, O., Islam, M.
Format: Article
Language:English
Subjects:
Analog to digital conversion
Analog-digital conversion
Bandwidth
Converters
Fiber nonlinear optics
Mathematical analysis
Nonlinear optics
Optical filters
Optical receivers
Optical signal processing
Photonics
Sampling
Sampling methods
Signal to noise ratio
Spontaneous emission
Supercontinuum generation
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Summary:In this letter, we demonstrate a photonic analog-to-digital converter with time stretch (TS) preprocessor that has a sampling rate of 130 GSa/s. The system has a signal-to-noise ratio (SNR) exceeding seven effective number of bits over a 1-GHz bandwidth at 18 GHz. We present an analytical model of the SNR in the TS preprocessor which shows that over the specified bandwidth, the SNR is limited by the amplified spontaneous emission beat noise.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.998725