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Journals >Chinese Optics Letters >Volume 13 >Issue 11 >Page 110602 > Article

Chinese Optics Letters
Vol. 13, Issue 11, 110602 (2015)

Adaptive digital backward propagation based on variance of intensity noise

Lin Jiang¹, Lianshan Yan^1、*, Zhiyu Chen¹, Anlin Yi¹, Yan Pan¹, Wei Pan¹, Bin Luo¹, and Guifang Li²

Author Affiliations

¹Center for Information Photonics & Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu 611756, China

²College of Optics & Photonics (CREOL), University of Central Florida, Orlando, FL 32816, USA

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DOI: 10.3788/COL201513.110602 Cite this Article Set citation alerts

Lin Jiang, Lianshan Yan, Zhiyu Chen, Anlin Yi, Yan Pan, Wei Pan, Bin Luo, Guifang Li. Adaptive digital backward propagation based on variance of intensity noise[J]. Chinese Optics Letters, 2015, 13(11): 110602 Copy Citation Text

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(a) Block diagram and (b) principle of proposed ADBP algorithm. ADC: analog-to-digital conversion; FOC: frequency-offset compensation.

Fig. 1. (a) Block diagram and (b) principle of proposed ADBP algorithm. ADC: analog-to-digital conversion; FOC: frequency-offset compensation.

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Flowchart of the proposed ADBP.

Fig. 2. Flowchart of the proposed ADBP.

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Fig. 3. Simulated performance: (a) normalized intensity noise variance with different products of

γ * ξ

under the different fiber output powers

p

for the 40 Gb/s PDM-QPSK; (b) BER versus launching power over 720 km SMF link with LE compensation, conventional DBP, and proposed ADBP.

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Fig. 4. Simulated performance: (a) BER versus launching power over

40 \times 100 km

SMF link for LE, standard DBP, and proposed ADBP for the 112 Gb/s PDM-QPSK. (b) Normalized intensity noise variance with different products of

γ * ξ

and corresponding constellation diagrams (

20 \times 100 km

SMF link) for the 224 Gb/s PDM-16-QAM.

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Fig. 5. Experimental results of BER versus launching power over 720 km SMF for LE and new ADBP.

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Lin Jiang, Lianshan Yan, Zhiyu Chen, Anlin Yi, Yan Pan, Wei Pan, Bin Luo, Guifang Li. Adaptive digital backward propagation based on variance of intensity noise[J]. Chinese Optics Letters, 2015, 13(11): 110602

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