Coherence-free optical delay line signal processor

E.H.W. Chan

doi:10.1049/el:20071270

Coherence-free optical delay line signal processor

E.H.W. Chan

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

A new coherence-free optical delay line signal processing structure based on an unbalanced Mach-Zehnder interferometer containing an optical frequency shifter is presented. A coherence-free notch filter response is obtained by frequency shifting the delayed optical signal. Results demonstrate a significant improvement of the filter response stability and of the signal-to-noise ratio compared to the conventional delay line signal processor.

Original language	English
Pages (from-to)	947-948
Number of pages	2
Journal	Electronics Letters
Volume	43
Issue number	17
DOIs	https://doi.org/10.1049/el:20071270
Publication status	Published - 2007
Externally published	Yes

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10.1049/el:20071270

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title = "Coherence-free optical delay line signal processor",

abstract = "A new coherence-free optical delay line signal processing structure based on an unbalanced Mach-Zehnder interferometer containing an optical frequency shifter is presented. A coherence-free notch filter response is obtained by frequency shifting the delayed optical signal. Results demonstrate a significant improvement of the filter response stability and of the signal-to-noise ratio compared to the conventional delay line signal processor. ",

keywords = "Electric delay lines, Frequency shift keying, Mach-Zehnder interferometers, Notch filters, Optical devices, Signal to noise ratio, Conventional delay, Optical frequency, Optical signal, Signal processing",

author = "E.H.W. Chan",

year = "2007",

doi = "10.1049/el:20071270",

language = "English",

volume = "43",

pages = "947--948",

journal = "Electronics Letters",

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publisher = "The Institution of Engineering and Technology",

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AU - Chan, E.H.W.

PY - 2007

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N2 - A new coherence-free optical delay line signal processing structure based on an unbalanced Mach-Zehnder interferometer containing an optical frequency shifter is presented. A coherence-free notch filter response is obtained by frequency shifting the delayed optical signal. Results demonstrate a significant improvement of the filter response stability and of the signal-to-noise ratio compared to the conventional delay line signal processor.

AB - A new coherence-free optical delay line signal processing structure based on an unbalanced Mach-Zehnder interferometer containing an optical frequency shifter is presented. A coherence-free notch filter response is obtained by frequency shifting the delayed optical signal. Results demonstrate a significant improvement of the filter response stability and of the signal-to-noise ratio compared to the conventional delay line signal processor.

KW - Electric delay lines

KW - Frequency shift keying

KW - Mach-Zehnder interferometers

KW - Notch filters

KW - Optical devices

KW - Signal to noise ratio, Conventional delay

KW - Optical frequency

KW - Optical signal, Signal processing

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U2 - 10.1049/el:20071270

DO - 10.1049/el:20071270

M3 - Article

SN - 0013-5194

VL - 43

SP - 947

EP - 948

JO - Electronics Letters

JF - Electronics Letters

IS - 17

ER -

Coherence-free optical delay line signal processor

Abstract

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