Optimization of regenerator based on semiconductor optical amplifier for degraded differential phase shift keying signal

doi:10.1088/1674-1056/21/6/064222

Abstract Real time phase regeneration is necessary for degraded phase modulation format optical communication systems. A regenerator based on the discrimitive gain effect of a semiconductor optical amplifier was proposed in recent years. In this paper, for this type of regenerator, its optimal working condition is found by solving the dynamic equations which describe the variance of the optical field and carrier density in the semiconductor optical amplifier by the finite difference method. The results show that the optimal improvement of signal Q factor can reach more than 2.2 dB.

Keywords: regenerator semiconductor optical amplifier Q factor improvement phase noise

Received: 14 September 2011
Revised: 21 November 2011
Accepted manuscript online:

PACS:	42.79.Sz	(Optical communication systems, multiplexers, and demultiplexers?)
	42.81.Wg	(Other fiber-optical devices)
	42.65.Sf	(Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)

Fund: Project supported by the Scientific Fund for Chinese Universities (Grant No. BUPT 2011RC009).

Corresponding Authors: Ma Yong-Xin
E-mail: Ma Yong-Xin

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Ma Yong-Xin(马永欣), Xi Li-Xia(席丽霞), Chen Guang(陈光), and Zhang Xiao-Guang(张晓光) Optimization of regenerator based on semiconductor optical amplifier for degraded differential phase shift keying signal 2012 Chin. Phys. B 21 064222

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Optimization of regenerator based on semiconductor optical amplifier for degraded differential phase shift keying signal

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