Advances in photonics, silicon electronics and digital signal processing (DSP) have converged to enable highly efficient transmission across fiber optic channels. Single wavelength data rates of 112 Gb/s are sought for wide deployment based on QPSK transmission, coherent detection, and digital demodulation. Here we examine continuous phase modulation (CPM) as a means to enhance performance and reach of coherent optical links. We quantify the robustness of the constant amplitude CPM format to spectral filtering and nonlinearities in comparison to QPSK. The challenges of generating and receiving the CPM waveform are considered and a novel CPM transmitter architecture is proposed.
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Jinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R China
Zhou, Ji
Wang, Haide
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Jinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R China
Wang, Haide
Feng, Yuanhua
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Jinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R China
Feng, Yuanhua
Liu, Weiping
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Jinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R China
Liu, Weiping
Gao, Shecheng
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Jinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R China
Gao, Shecheng
Yu, Changyuan
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Hong Kong Polytech Univ, Dept Elect & Informat Engn, Hong Kong, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R China
Yu, Changyuan
Li, Zhaohui
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Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China
Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R ChinaJinan Univ, Coll Informat Sci & Technol, Dept Elect Engn, Guangzhou 510632, Peoples R China