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An improved delayed self-heterodyne interferometer for linewidth measurements


Abstract:

The authors demonstrated a delayed self-heterodyne interferometer with a recirculating delay, in which loss was partially compensated by an erbium-doped fiber amplifier. ...Show More

Abstract:

The authors demonstrated a delayed self-heterodyne interferometer with a recirculating delay, in which loss was partially compensated by an erbium-doped fiber amplifier. A resolution limit of 606 Hz was achieved with an 11-km fiber delay line, as compared to 18.2 kHz for the standard single-pass case. The possible effect of spectral broadening due to amplifier noise is considered and found to have a negligible effect on the system performance.<>
Published in: IEEE Photonics Technology Letters ( Volume: 4, Issue: 9, September 1992)
Page(s): 1063 - 1066
Date of Publication: 06 August 2002

ISSN Information:


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