DocumentCode
1338422
Title
OSNR Requirements for Self-Homodyne Coherent Systems
Author
Sjödin, Martin ; Johannisson, Pontus ; Karlsson, Magnus ; Tong, Zhi ; Andrekson, Peter A.
Author_Institution
Dept. of Microtechnol. & Nanosci., Chalmers Univ. of Technol., Goteborg, Sweden
Volume
22
Issue
2
fYear
2010
Firstpage
91
Lastpage
93
Abstract
The optical signal-to-noise ratio requirements for a self-homodyne (SH) coherent system are investigated theoretically and experimentally and compared to intradyne (ID) detection. The beneficial effect of bandpass filtering of the copropagating local oscillator is demonstrated and it is shown that the performance limit for SH and ID systems becomes equal as the filter bandwidth is made small.
Keywords
band-pass filters; homodyne detection; light coherence; optical fibre networks; optical modulation; quadrature phase shift keying; bandpass filtering; copropagating local oscillator; fiber-optic networks; filter bandwidth; homodyne detection; intradyne detection; optical signal-to-noise ratio; quadrature phase shift keying; self-homodyne coherent systems; Intradyne (ID); optical signal-to-noise ratio (OSNR); quadrature phase-shift keying (QPSK); self-homodyne (SH);
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/LPT.2009.2036376
Filename
5339150
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