Chinese Optics Letters, 2011, 9 (8): 080602, Published Online: Jun. 3, 2011
Label swapping and packet transmission of DPSK-labeled PPM signal in optical label switching Download: 925次
差分相移键控(DPSK) 脉冲位置调制(PPM) 四波混频(FWM) 光标记交换(OLS) 标记擦除与插入 060.2330 Fiber optics communications 060.4510 Optical communications 060.6719 Switching, packet
Abstract
A label swapping scheme of an optical labeled signal with differential phase shift keying (DPSK) for label at 2.5 Gb/s and pulse position modulation (PPM) for payload at 40 Gb/s is demonstrated by simulation. Power penalties of ?1.8 and ?0.8 dB are achieved for both the payload and label over 80-km single mode fiber (SMF) transmission. This labeling scheme allows the use of four-wave mixing (FWM) in semiconductor optical amplifier (SOA) to perform label erasure, with advantages of transparence for bit rate, high processing rate, simple architecture, and low cost. Label swapping is demonstrated with appropriate penalties of ?3.5 and 0.8 dB for PPM payload and new DPSK label, respectively. To further prove the effectiveness of the proposed scheme, label swapping in the case of using 10-Gb/s DPSK label is also investigated with the power penalties of 6 and 2 dB for PPM payload and new DPSK label.
Yan Shi, Qi Zhang, Chongxiu Yu, Xiangjun Xin, Cang Jin, Rui Zhou. Label swapping and packet transmission of DPSK-labeled PPM signal in optical label switching[J]. Chinese Optics Letters, 2011, 9(8): 080602.