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Proceedings Paper

Multi-channel all-optical format conversions from RZ signals with different duty-cycle to NRZ signals
Author(s): Yu Yu; Xinliang Zhang; Cheng Cheng; Dexiu Huang
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Paper Abstract

We propose and theoretically demonstrate multi-channel all-optical non-return-to-zero (NRZ) format to return-to-zero (RZ) format conversions for wavelength division multiplexing (WDM) network. By using two fiber based delay interferometers (DIs) with free spectral range (FSR) of 20GHz and 40GHz, 8*10Gb/s (200GHz spacing on ITU grid) RZ signals can be converted to corresponding NRZ signals with small penalty. The principle and simulation are analyzed in both time and frequency domains. Format conversions are demonstrated for multi-channel RZ signals with duty cycle of 33%, 50% and 66% respectively. Q factors before and after the multi-channel RZ-to-NRZ conversions show a good performance and thus the practicability of the proposed format converter.

Paper Details

Date Published: 26 October 2009
PDF: 6 pages
Proc. SPIE 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration, 75160X (26 October 2009); doi: 10.1117/12.840746
Show Author Affiliations
Yu Yu, Huazhong Univ. of Science and Technology (China)
Xinliang Zhang, Huazhong Univ. of Science and Technology (China)
Cheng Cheng, Huazhong Univ. of Science and Technology (China)
Dexiu Huang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7516:
Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration
Zishen Zhao; Ray T. Chen; Yong Chen; Jinzhong Yu; Junqiang Sun; Weiwei Dong, Editor(s)

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