光通信技术研究现状及发展趋势

doi:10.11959/j.issn.1000-0801.2019009

Abstract

Abstract:

With the rapid growth of network bandwidth demand and the development of new applications and network services,the development of optical networks is facing a huge bottleneck of transmission capacity,switching granularity and network control.In order to solve these problems,researchers around the world have put forward new solutions.The technological innovation in optical networks in recent years was discussed,the development of dynamic reconfigurable optical network,integrated optoelectronics and optical fiber transmission technology was mainly discussed,and the future development trend of optical networks was analyzed in order to provide reference for related research.

Key words: optical communication network, ROADM, coherent optical communication, space division multiplexing

CLC Number:

TN929.5

Xiangdong LV,Xuerui LIANG,Qianchen YU,Weidong MA. Research status and development trend of optical communication technology[J]. Telecommunications Science, 2019, 35(2): 70-78.

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References 19

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带宽	波长范围	应用场景
O-band	1 260~1 360 nm	GPON上行，数据中心
E-band	1 360~1 460 nm	水峰，作为O-band的扩展
S-band	1 460~1 530 nm	GPON下行
C-band	1 530~1 565 nm	DWDM，EDFA，CATV，NG-PON2上行
L-band	1 565~1 625 nm	DWDM的扩展波长，NG-PON2下行

EDFA中的光器件	C-band	L-band
隔离器，taps	已商用	已商用
C+L波段光耦合器	已商用	研制中
增益平坦滤波器	已商用	研制中
掺铒光纤	已商用	研制中
泵浦激光器	980 nm,1 480 nm	980 nm,1 480 nm

Research status and development trend of optical communication technology

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