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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 14 — Jul. 5, 2010
  • pp: 14871–14877

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

S. P. Jung, Y. Takushima, and Y. C. Chung  »View Author Affiliations

Optics Express, Vol. 18, Issue 14, pp. 14871-14877 (2010)

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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.

© 2010 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems

ToC Category:

Original Manuscript: May 3, 2010
Revised Manuscript: June 3, 2010
Manuscript Accepted: June 8, 2010
Published: June 28, 2010

S. P. Jung, Y. Takushima, and Y. C. Chung, "Transmission of 1.25-Gb/s PSK signal generated by using RSOA in 110-km coherent WDM PON," Opt. Express 18, 14871-14877 (2010)

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