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

• Others • 上一篇    下一篇

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

袁学光,张锦南,张阳安,张明伦,黄永清,任晓敏   

  1. Key Laboratory of Information Photonics and Optical Communications, Ministry of Education,
    Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2009-02-16 修回日期:1900-01-01 出版日期:2010-02-28
  • 通讯作者: 袁学光

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   

  1. 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

摘要:

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.

关键词:

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

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