Reduction of mode partition noise of FP-LD by using Mach-Zehnder interferometer for RSOA-based DWDM applications

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We investigate reduction of mode partition noise of a spectrally sliced Fabry-Perot laser diode (FP-LD) for application to seeded DWDM systems. The proposed scheme for the noise reduction incorporates a fiber-based Mach-Zehnder interferometer (MZI) and a reflective semiconductor optical amplifier (RSOA). The MZI enables to reduce a relative intensity noise (RIN) more than 3 dB with better noise distributions. Experimental results of 10-Gb/s signal transmission exhibit a considerable bit-error-rate (BER) reduction by three orders of magnitude at the given received power. After the noise reduction, the FP-LD is applied to a 10-Gb/s DWDM system as a seed-light-source. In a local-seeding scheme, return-to-zero (RZ) and carrier-suppressed (CS)-RZ signal formats are compared as a function of transmission distance. Furthermore, a back-reflection induced impairment is evaluated in a remote-seeding scheme. We also count the number of useable channels to show the feasibility of DWDM transmission. (C) 2016 Optical Society of Americ
Publisher
OPTICAL SOC AMER
Issue Date
2016-06
Language
English
Article Type
Article
Keywords

OPTICAL MODULATION FORMATS; LASER-DIODES; TRANSMISSION; ASE; SUPPRESSION; NETWORKS; SYSTEM; FIBER

Citation

OPTICS EXPRESS, v.24, no.13, pp.14494 - 14505

ISSN
1094-4087
DOI
10.1364/OE.24.014494
URI
http://hdl.handle.net/10203/213184
Appears in Collection
EE-Journal Papers(저널논문)
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