| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Experimental Investigation of All-Optical NRZ-DPSK to RZ-DPSK Format Conversion Based on TOAD |
| MAO Ya-Ya, SHENG Xin-Zhi, WU Chong-Qing**, ZHANG Tian-Yong, WANG Ying |
Institute of Optical Information, and Key Lab of Luminescence and Optical Information Technology (Ministry of Education), Beijing Jiaotong University, Beijing 100044
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| Cite this article: |
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MAO Ya-Ya, SHENG Xin-Zhi, WU Chong-Qing et al 2015 Chin. Phys. Lett. 32 114204 |
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Abstract We propose and experimentally demonstrate a novel all-optical non-return-to-zero differential-phase-shift-keying (NRZ-DPSK) to return-to-zero differential-phase-shift-keying (RZ-DPSK) format conversion scheme. This scheme is based on the terahertz optical asymmetric demultiplexer (TOAD). A 10 Gb/s converted RZ-DPSK signal is obtained with a wide duty cycle tuning range from 16% to 66%. For all converted RZ-DPSK signals, the receiver sensitivities at BER of 10?9 are 0.4 to 1.7 dB higher compared with the original NRZ-DPSK signal. The clear and open eye diagrams are presented to demonstrate the high quality format conversion performance. Moreover, the optical spectra show that this conversion is in a wavelength-preserving operation.
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Received: 05 August 2015
Published: 01 December 2015
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| PACS: |
42.79.Sz
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(Optical communication systems, multiplexers, and demultiplexers?)
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42.25.Kb
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(Coherence)
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42.65.Yj
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(Optical parametric oscillators and amplifiers)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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