Transmission of 1.25-Gb/s PSK signal generated by using RSOA in 110-km coherent WDM PON

We generate the phase-modulated signal by utilizing the chirp characteristics of the directly-modulated reflective semiconductor optical amplifier (RSOA) for the cost-effective realization of a long-reach wavelength-division-multiplexed passive optical network (WDM PON). We first investigate the rel...

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Bibliographic Details
Published inOptics express Vol. 18; no. 14; pp. 14871 - 14877
Main Authors Jung, S P, Takushima, Y, Chung, Y C
Format Journal Article
LanguageEnglish
Published United States 05.07.2010
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Summary:We generate the phase-modulated signal by utilizing the chirp characteristics of the directly-modulated reflective semiconductor optical amplifier (RSOA) for the cost-effective realization of a long-reach wavelength-division-multiplexed passive optical network (WDM PON). We first investigate the relation between the amplitude and phase modulation indices in a directly-modulated RSOA and optimize these modulation indices to maximize the symbol distance on the constellation diagram. The results show that, by operating the RSOA under this optimum condition, we can achieve the excellent receiver sensitivity of -49.8 dBm at 1.25 Gb/s. We implement a long-reach WDM PON by using the phase-modulated RSOAs and self-homodyne receivers, and demonstrate the error-free transmission of 1.25-Gb/s signal over a 110-km long link without using any optical amplifiers.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.18.014871