Experimental demonstration and analysis of all-optical label swapping based on RZ-DQPSK/IRZ-ASK modulation format

doi:10.1016/S1005-8885(09)60432-5

Acta Metallurgica Sinica(English letters) ›› 2010, Vol. 17 ›› Issue (1): 101-105.doi: 10.1016/S1005-8885(09)60432-5

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Experimental demonstration and analysis of all-optical label swapping based on RZ-DQPSK/IRZ-ASK modulation format

YUAN Xue-guang, ZHANG Jin-nan, ZHANG Yang-an, ZHANG Ming-lun, HUANG Yong-qing, REN Xiao-min

Key Laboratory of Information Photonics and Optical Communications, Ministry of Education,
Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2009-02-16 Revised:1900-01-01 Online:2010-02-28
Contact: YUAN Xue-guang

Abstract

Abstract:

A novel optical return zero differential quadrature phase shifted keying/inverse return zero amplitude shifted keying (RZ-DQPSK/IRZ-ASK) orthogonal modulation format scheme for all-optical label swapping is analyzed theoretically and experimentally. The transmission characteristics of RZ-DQPSK/IRZ-ASK modulation format transmission system are demonstrated. Results show that high extinction ratio is obtained for IRZ-ASK label signal while at the same time the all-optical label swapping, differential quadrature phase shifted keying (DQPSK) payload signal is hardly affected. It requires only 0.9 dB higher power penalty compared to 21.4 Gbit/s RZ-DQPSK modulation format and less than 2 dB transmission penalty after 60 km. The proposed scheme is a practical solution for meeting the data rate and cost-efficiency of the optical links simultaneously in future all-optical label swapping.

Key words:

DQPSK;inverse return zero (IRZ);amplitude shifted keying (ASK);combine modulation formats

YUAN Xue-guang, ZHANG Jin-nan, ZHANG Yang-an, ZHANG Ming-lun, HUANG Yong-qing, REN Xiao-min. Experimental demonstration and analysis of all-optical label swapping based on RZ-DQPSK/IRZ-ASK modulation format[J]. Acta Metallurgica Sinica(English letters), 2010, 17(1): 101-105.

References

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Experimental demonstration and analysis of all-optical label swapping based on RZ-DQPSK/IRZ-ASK modulation format

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