Suppression of phase-induced intensity noise in optical delay-line signal processors using a delayed differential technique

E.H.W. Chan, R.A. Minasian

Research output: Contribution to journalArticleResearchpeer-review

Abstract

In this paper, a new technique that can suppress the dominant phase-induced intensity noise (PIIN) in general delay-line signal processor structures is presented. It is based on a delayed differential technique using a complementary output electro-optic modulator together with appropriate time delay and polarization effects to cancel the PIIN noise at the filter passband frequency. Experimental results using the delayed differential technique demonstrate a PIIN noise reduction of 19 dB at the filter passband for an amplified recirculating delay-line bandpass filter, together with a fourfold increase in the free spectral range and a 10 dB increase in the bandpass filter rejection level.
Original languageEnglish
Pages (from-to)5127-5133
Number of pages7
JournalJournal of Lightwave Technology
Volume27
Issue number22
DOIs
Publication statusPublished - 15 Nov 2009
Externally publishedYes

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noise intensity
delay lines
central processing units
retarding
bandpass filters
filters
noise reduction
rejection
electro-optics
modulators
time lag
output
polarization

Cite this

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title = "Suppression of phase-induced intensity noise in optical delay-line signal processors using a delayed differential technique",
abstract = "In this paper, a new technique that can suppress the dominant phase-induced intensity noise (PIIN) in general delay-line signal processor structures is presented. It is based on a delayed differential technique using a complementary output electro-optic modulator together with appropriate time delay and polarization effects to cancel the PIIN noise at the filter passband frequency. Experimental results using the delayed differential technique demonstrate a PIIN noise reduction of 19 dB at the filter passband for an amplified recirculating delay-line bandpass filter, together with a fourfold increase in the free spectral range and a 10 dB increase in the bandpass filter rejection level.",
keywords = "Bandpass filters, Microwave filters, Modulators, Optical signal processing, Phase noise, Time delay, Complementary output, Differential technique, Electro-optic modulators, Fiber-optic delay lines, Microwave Photonics, Noise suppression, Passband frequencies, Phase-induced intensity noise, Signal processing",
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Suppression of phase-induced intensity noise in optical delay-line signal processors using a delayed differential technique. / Chan, E.H.W.; Minasian, R.A.

In: Journal of Lightwave Technology, Vol. 27, No. 22, 15.11.2009, p. 5127-5133.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Suppression of phase-induced intensity noise in optical delay-line signal processors using a delayed differential technique

AU - Chan, E.H.W.

AU - Minasian, R.A.

PY - 2009/11/15

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N2 - In this paper, a new technique that can suppress the dominant phase-induced intensity noise (PIIN) in general delay-line signal processor structures is presented. It is based on a delayed differential technique using a complementary output electro-optic modulator together with appropriate time delay and polarization effects to cancel the PIIN noise at the filter passband frequency. Experimental results using the delayed differential technique demonstrate a PIIN noise reduction of 19 dB at the filter passband for an amplified recirculating delay-line bandpass filter, together with a fourfold increase in the free spectral range and a 10 dB increase in the bandpass filter rejection level.

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KW - Bandpass filters

KW - Microwave filters

KW - Modulators

KW - Optical signal processing

KW - Phase noise

KW - Time delay, Complementary output

KW - Differential technique

KW - Electro-optic modulators

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KW - Microwave Photonics

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