| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Single- and Dual-Channel DPSK Signal Amplitude Regeneration Based on a Single Semiconductor Optical Amplifier |
| HUANG Xi,QIN Cui,YU Yu,ZHANG Zheng,ZHANG Xin-Liang** |
| Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074 |
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| Cite this article: |
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HUANG Xi, QIN Cui, YU Yu et al 2012 Chin. Phys. Lett. 29 054202 |
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Abstract We experimentally demonstrate that, based on operational condition optimization, a common quantum well (QW) semiconductor optical amplifier (SOA) has the ability of amplitude regeneration for return-to-zero (RZ) differential phase shift keying (DPSK) signals. For a single-channel RZ-DPSK regeneration scheme, a significant eye-opening enhancement and a negative power penalty of about 1.0 dB are obtained. For dual-channel RZ-DPSK regeneration, it can also be found that the eye-opening improvement and power penalty decrease in each channel. In addition, the DPSK regeneration scheme based on a single QW SOA is quite simple and stable.
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Received: 31 August 2011
Published: 30 April 2012
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| PACS: |
42.55.Px
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(Semiconductor lasers; laser diodes)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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42.65.Sf
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(Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)
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