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Efficient Excess Intensity Noise Suppression of 100-GHz Spectrum-Sliced WDM-PON With a Narrow-Bandwidth Seed Light Source
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- Authors
- Han Hyub Lee, Seung Hyun Cho, Sang Soo Lee
- Issue Date
- 2009-12
- Citation
- IEEE Photonics Technology Letters, v.22, no.20, pp.1542-1544
- ISSN
- 1041-1135
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- 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.
- KSP Keywords
- Channel spacing, Flat-top passband, Injection-seeded, Intensity noise, Light sources, Optical signal, Reflective Semiconductor Optical Amplifier, Semiconductor optical amplifiers(SOAs), Signal noise ratio(SNR), Signal-to-Noise, Single-mode fiber(SMF)