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학술지 Efficient Excess Intensity Noise Suppression of 100-GHz Spectrum-Sliced WDM-PON With a Narrow-Bandwidth Seed Light Source
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저자
이한협, 조승현, 이상수
발행일
200912
출처
IEEE Photonics Technology Letters, v.22 no.20, pp.1542-1544
ISSN
1041-1135
출판사
IEEE
DOI
https://dx.doi.org/10.1109/LPT.2010.2069088
협약과제
09MH1100, 메트로-액세스 전광 통합망 기술개발, 이상수
초록
In spectrum-sliced wavelength-division-multiplexing (WDM) passive optical networks (PONs) based on injection-seeded reflective semiconductor optical amplifiers, the inevitable spectral filtering by multiplexer/demultiplexer leads to an increase in excess intensity noise (EIN). The increased EIN degrades the signal-to-noise ratio of the modulated optical signal. To reduce the EIN, we utilized flat-top passband arrayed waveguide gratings and a narrow-bandwidth seed light source in a WDM-PON. The feasibility of a 32 × 1.25-Gb/s WDM-PON with 100-GHz channel spacing over a 20-km single-mode fiber was successfully demonstrated with a negligible power penalty. © 2006 IEEE.
키워드
Excess intensity noise (EIN), passive optical access network, reflective semiconductor optical amplifier (R-SOA), seed light, spectrum slicing, wavelength-division multiplexing (WDM)
KSP 제안 키워드
Channel spacing, Flat-top passband, Injection-seeded, Intensity noise, Light sources, Optical access network, Optical signal, Reflective Semiconductor Optical Amplifier, Semiconductor optical amplifiers(SOAs), Signal noise ratio(SNR), Signal-to-Noise