A 40 Gb/s InP-monolithically integrated DPSK-demolulator enhanced by cross-gain-compensation in an SOA

F. Bontempi, S. Faralli, X.J.M. Leijtens, J. Bolk, G. Contestabile, N. Andriolli

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)
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Abstract

We fabricated and experimentally tested a novel monolithically integrated Indium Phosphide optical circuit for differential phase-shift keying demodulation, which is robust to noise degradations of the received signal. The circuit consists of a one-bit-delay interferometer that demodulates the incoming signal and a semiconductor optical amplifier where the constructive and destructive demodulated outputs synchronously counter-propagate experiencing a reshaping effect. The novel optical circuit has been fabricated for 40 Gb/s signals, and the amplitude signal restoration is demonstrated by comparing the obtained output eye diagrams with those of a commercial fiber-based demodulator. We find a net improvement in the signal to noise ratio when the circuit is fed with a noisy input signal.
Original languageEnglish
Pages (from-to)155-158
Number of pages4
JournalOptics Communications
Volume340
DOIs
Publication statusPublished - 2015

Fingerprint

Service oriented architecture (SOA)
Networks (circuits)
Indium phosphide
Demodulators
Semiconductor optical amplifiers
Phase shift keying
demodulators
Demodulation
phase shift keying
indium phosphides
Interferometers
output
Restoration
demodulation
Signal to noise ratio
light amplifiers
restoration
counters
signal to noise ratios
Degradation

Cite this

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title = "A 40 Gb/s InP-monolithically integrated DPSK-demolulator enhanced by cross-gain-compensation in an SOA",
abstract = "We fabricated and experimentally tested a novel monolithically integrated Indium Phosphide optical circuit for differential phase-shift keying demodulation, which is robust to noise degradations of the received signal. The circuit consists of a one-bit-delay interferometer that demodulates the incoming signal and a semiconductor optical amplifier where the constructive and destructive demodulated outputs synchronously counter-propagate experiencing a reshaping effect. The novel optical circuit has been fabricated for 40 Gb/s signals, and the amplitude signal restoration is demonstrated by comparing the obtained output eye diagrams with those of a commercial fiber-based demodulator. We find a net improvement in the signal to noise ratio when the circuit is fed with a noisy input signal.",
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year = "2015",
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A 40 Gb/s InP-monolithically integrated DPSK-demolulator enhanced by cross-gain-compensation in an SOA. / Bontempi, F.; Faralli, S.; Leijtens, X.J.M.; Bolk, J.; Contestabile, G.; Andriolli, N.

In: Optics Communications, Vol. 340, 2015, p. 155-158.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - A 40 Gb/s InP-monolithically integrated DPSK-demolulator enhanced by cross-gain-compensation in an SOA

AU - Bontempi, F.

AU - Faralli, S.

AU - Leijtens, X.J.M.

AU - Bolk, J.

AU - Contestabile, G.

AU - Andriolli, N.

PY - 2015

Y1 - 2015

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AB - We fabricated and experimentally tested a novel monolithically integrated Indium Phosphide optical circuit for differential phase-shift keying demodulation, which is robust to noise degradations of the received signal. The circuit consists of a one-bit-delay interferometer that demodulates the incoming signal and a semiconductor optical amplifier where the constructive and destructive demodulated outputs synchronously counter-propagate experiencing a reshaping effect. The novel optical circuit has been fabricated for 40 Gb/s signals, and the amplitude signal restoration is demonstrated by comparing the obtained output eye diagrams with those of a commercial fiber-based demodulator. We find a net improvement in the signal to noise ratio when the circuit is fed with a noisy input signal.

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DO - 10.1016/j.optcom.2014.11.097

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SP - 155

EP - 158

JO - Optics Communications

JF - Optics Communications

SN - 0030-4018

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