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Relative Group Delay Measurements with 0.3 ps Resolution: Toward 40 Gbit/s Component Metrology

Published

Author(s)

Tasshi Dennis, Paul A. Williams

Abstract

We demonstrate relative group delay measurements on a molecular absorption line using a modulation phase shift technique yielding 0.3 ps resolution. Measured features as small as [approximately}1 ps in a hydrogen cyanide gas cell are shown to agree well with theory. This measurement and calibration technique shows promise for the metrology of emerging 40 Gbit/s optical communications components, where variations in group delay broaden optical data pulses causing transmission errors.
Proceedings Title
Tech. Dig. Optical Fiber Communication Conf. (OFC)
Conference Dates
March 17-22, 2002
Conference Location
Anaheim, CA, USA

Keywords

optical communications, relative group delay, wavelength division multiplexing, WDM, calibration artifact, chromatic dispersion, hydrogen cyanide, Kramers-Kronig

Citation

Dennis, T. and Williams, P. (2002), Relative Group Delay Measurements with 0.3 ps Resolution: Toward 40 Gbit/s Component Metrology, Tech. Dig. Optical Fiber Communication Conf. (OFC), Anaheim, CA, USA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=30131 (Accessed April 15, 2024)
Created December 31, 2001, Updated October 12, 2021