Effects of In-Band Crosstalk in Wavelength-Locked Fabry-Perot Laser-Diode-Based WDM PONs

Title
Effects of In-Band Crosstalk in Wavelength-Locked Fabry-Perot Laser-Diode-Based WDM PONs
Authors
김철한이관일이상배
Keywords
Crosstalk; Fabry??ot laser diode (FP-LD); passive optical network (PON); wavelength-division multiplexing
Issue Date
2009-05
Publisher
IEEE photonics technology letters : a publication of the IEEE Laser and Electro-optics Society
Citation
VOL 21, NO 9, 596-598
Abstract
We investigated the impact of in-band crosstalk on the system’s performance in wavelength-locked Fabry–Pérot laserdiode (FP-LD)-based wavelength-division-multiplexed passive optical networks (WDM PONs). As expected, wavelength-locked FP-LD, which was injected by using an incoherent broadband light source, was more tolerant to in-band crosstalk than distributed- feedback (DFB) laser diode. A 1-dB power penalty in the wavelength-locked FP-LD-based PON system was observed when the crosstalk-to-signal ratio was 9 dB. We also compared the measured power penalties with the calculated power penalties. It has been shown that the in-band crosstalk-induced power penalty in wavelength-locked FP-LD-based WDM PON could be estimated properly by taking into account both effects of power addition and signal-crosstalk beat noise.
URI
http://pubs.kist.re.kr/handle/201004/35217
ISSN
1041-1135
Appears in Collections:
KIST Publication > Article
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