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Real-time jitter correction in a photonic analog-to-digital converter

Journal Article · · Optics Letters
DOI:https://doi.org/10.1364/ol.397249· OSTI ID:1785923
 [1];  [2];  [2];  [2]
  1. Univ. of Arizona, Tucson, AZ (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

A real-time jitter meter is used to measure and digitally sample the pulse-to-pulse timing error in a laser pulse train. The jitter meter is self-referenced using a single-pulse delay line interferometer and measures timing jitter using optical heterodyne detection between two frequency channels of the pulse train. Jitter sensitivity down to 3×10-10 fs2/Hz at 500 MHz has been demonstrated with a pulse-to-pulse noise floor of 1.6 fs. Furthermore, as a proof of principle, the digital correction of the output of a high-frequency photonic analog-to-digital converter (PADC) is demonstrated with an emulated jitter signal. Up to 23 dB of jitter correction, down to the noise floor of the PADC, is accomplished with radio-frequency modulation up to 40 GHz.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1785923
Report Number(s):
LLNL-JRNL--809819; 1016230
Journal Information:
Optics Letters, Journal Name: Optics Letters Journal Issue: 18 Vol. 45; ISSN 0146-9592
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English

References (20)

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Attosecond-resolution timing jitter characterization of free-running mode-locked lasers journal January 2007
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High-channel-count 20  GHz passively mode-locked quantum dot laser directly grown on Si with 41  Tbit/s transmission capacity journal January 2019

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