| Wavelength synchronization technology for UDWDM-PON transmitter based on injection locking |
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| 作者姓名： | 王菊 贾婷 王帅帅 李天宇 马闯 谢田元 于洋 于晋龙 |
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| 作者单位： | School of Electrical and Information Engineering |
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| 基金项目： | supported in part by the National Natural Science Foundation of China(NSFC)(Nos.61775162 and 61427817)。 |
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| 摘 要： | We propose a concept of wavelength synchronization to ensure the stability of ultra-dense channels in an ultra-dense wavelength division multiplexing passive optical network(UDWDM-PON)transmitter.A mode-locked laser is used to provide wavelength references for users.By injection locking the semiconductor laser,the separation of the wavelength reference is realized in an optical line terminal.The downlink and uplink wavelength references are interlaced and distributed to facilitate the synchronization of uplink carriers.In the optical network unit,the uplink optical carriers are filtered by injection locking semiconductor lasers,which achieve wavelength synchronization for the uplink users.In this Letter,an adaptive wavelength synchronization transmitter for UDWDM-PON is realized with a channel spacing of 5 GHz.
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| 关 键 词： | optical access network injection locking UDWDM-PON wavelength synchronization |
Wavelength synchronization technology for UDWDM-PON transmitter based on injection locking |
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| Ju Wang,Ting Jia,Shuaishuai Wang,Tianyu Li,Chuang Ma,Tianyuan Xie,Yang Yu,Jinlong Yu.Wavelength synchronization technology for UDWDM-PON transmitter based on injection locking[J].中国光学快报(英文版),2021(1):7-13. |
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| Authors: | Ju Wang Ting Jia Shuaishuai Wang Tianyu Li Chuang Ma Tianyuan Xie Yang Yu Jinlong Yu |
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| Institution: | (School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | We propose a concept of wavelength synchronization to ensure the stability of ultra-dense channels in an ultra-dense wavelength division multiplexing passive optical network(UDWDM-PON) transmitter. A mode-locked laser is used to provide wavelength references for users. By injection locking the semiconductor laser, the separation of the wavelength reference is realized in an optical line terminal. The downlink and uplink wavelength references are interlaced and distributed to facilitate the synchronization of uplink carriers. In the optical network unit, the uplink optical carriers are filtered by injection locking semiconductor lasers, which achieve wavelength synchronization for the uplink users. In this Letter, an adaptive wavelength synchronization transmitter for UDWDM-PON is realized with a channel spacing of 5 GHz. |
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