Referenced Items are not available for this document.
Two important aspects of optical amplifier noise figure as measured with a heterodyne detection receiver are investigated. First, differential mode gain will result in polarization-dependent degradation of the perceived amplifier noise figure, even when the noise figures for the TE and TM modes of the amplifier are the same. For a differential mode gain of 7.5 dB the noise figure degradation can be as large as 3 dB, and experimental data is reported in good agreement with theoretical predictions. Secondly, the first experimental demonstration of the use of image-rejection techniques to improve the sensitivity of a heterodyne receiver limited by beat noise between the local oscillator and amplified spontaneous emission is discussed
Published in:
Lightwave Technology, Journal of
(Volume:8
,
Issue:
9
)
Date of Publication: Sep 1990
- Page(s):
- 1409 - 1413
- ISSN :
- 0733-8724
- INSPEC Accession Number:
- 3780257
- Digital Object Identifier :
- 10.1109/50.59172
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Sep 1990
- Sponsored by :
- IEEE Aerospace and Electronic Systems Society
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