Dependence of in-band incoherent crosstalk-induced penalty on seed source in RSOA-based WDM-PONs

Chul Han Kim

doi:10.1109/LPT.2012.2183864

Dependence of in-band incoherent crosstalk-induced penalty on seed source in RSOA-based WDM-PONs

Chul Han Kim

School of Electrical and Computer Engineering

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

3 Scopus citations

Abstract

We have investigated the dependence of in-band incoherent crosstalk-induced power penalties on seed source in reflective semiconductor optical amplifier (RSOA)-based wavelength-division-multiplexed passive optical networks (WDM-PONs). The in-band crosstalk penalties in an RSOA-based WDM-PON were measured with two different seed sources; a broadband light source (BLS) and a distributed feedback laser diode (DFB-LD). The 1-dB power penalties with a BLS seeded and a DFB-LD seeded RSOA source were observed when the crosstalk-to-signal ratios were ∼-14 and -16 dB, respectively. From the results, we found that the directly-modulated RSOA sources with a BLS or a DFB-LD seed source were more tolerant to the in-band crosstalk than an externally-modulated DFB-LD source. In addition, we confirmed that the in-band crosstalk-induced power penalty in the RSOA-based WDM-PONs could be calculated with a proper estimation of an equivalent optical source bandwidth.

Original language	English
Article number	6129389
Pages (from-to)	581-583
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	24
Issue number	7
DOIs	https://doi.org/10.1109/LPT.2012.2183864
State	Published - 2012

Keywords

Crosstalk
passive optical network
reflective semiconductor optical amplifier

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10.1109/LPT.2012.2183864

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title = "Dependence of in-band incoherent crosstalk-induced penalty on seed source in RSOA-based WDM-PONs",

abstract = "We have investigated the dependence of in-band incoherent crosstalk-induced power penalties on seed source in reflective semiconductor optical amplifier (RSOA)-based wavelength-division-multiplexed passive optical networks (WDM-PONs). The in-band crosstalk penalties in an RSOA-based WDM-PON were measured with two different seed sources; a broadband light source (BLS) and a distributed feedback laser diode (DFB-LD). The 1-dB power penalties with a BLS seeded and a DFB-LD seeded RSOA source were observed when the crosstalk-to-signal ratios were ∼-14 and -16 dB, respectively. From the results, we found that the directly-modulated RSOA sources with a BLS or a DFB-LD seed source were more tolerant to the in-band crosstalk than an externally-modulated DFB-LD source. In addition, we confirmed that the in-band crosstalk-induced power penalty in the RSOA-based WDM-PONs could be calculated with a proper estimation of an equivalent optical source bandwidth.",

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AB - We have investigated the dependence of in-band incoherent crosstalk-induced power penalties on seed source in reflective semiconductor optical amplifier (RSOA)-based wavelength-division-multiplexed passive optical networks (WDM-PONs). The in-band crosstalk penalties in an RSOA-based WDM-PON were measured with two different seed sources; a broadband light source (BLS) and a distributed feedback laser diode (DFB-LD). The 1-dB power penalties with a BLS seeded and a DFB-LD seeded RSOA source were observed when the crosstalk-to-signal ratios were ∼-14 and -16 dB, respectively. From the results, we found that the directly-modulated RSOA sources with a BLS or a DFB-LD seed source were more tolerant to the in-band crosstalk than an externally-modulated DFB-LD source. In addition, we confirmed that the in-band crosstalk-induced power penalty in the RSOA-based WDM-PONs could be calculated with a proper estimation of an equivalent optical source bandwidth.

KW - Crosstalk

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KW - reflective semiconductor optical amplifier

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Dependence of in-band incoherent crosstalk-induced penalty on seed source in RSOA-based WDM-PONs

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