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Simulation for all-optical format conversion from NRZ-DPSK to RZ-DPSK |
Zheng ZHANG, Yu YU, Xinliang ZHANG( ) |
| Wuhan National Laboratory for Optoelectronics, College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
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Abstract We propose and simulate a simple scheme of all-optical format conversion from non-return-to-zero differential phase-shift keying (NRZ-DPSK) to return-to-zero differential phase-shift keying (RZ-DPSK) by using phase modulators and detuning filters. The operation principle is theoretically analyzed and simulated by exploiting spectra, temporal waveform and eye diagram with commerical optical design software VPI Transmission Maker 8.5. The use of electrical clock recovery and linear phase modulation in the conversion scheme may be potiental in practise use.
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| Keywords
format conversion
differential phase-shift keying (DPSK)
all-optical processing
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Corresponding Author(s):
ZHANG Xinliang,Email:xlzhang@mail.hust.edu.cn
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Issue Date: 05 September 2011
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