Transmission of precise phase coherent optical signals using a VCSEL stabilization system

作     者：Shukree Wassin George Isoe Andrew Leitch Tim Gibbon 

作者机构：Centre for Broadband CommunicationPhysics DepartmentNelson Mandela University 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2019年第15卷第3期

页      面：200-203页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported by the National Research Foundation of South Africa Department of Science and Technology South Africa Square Kilometre Array South Africa Telkom Cisco 

主　　题：VCSEL Transmission of precise phase coherent optical signals using a VCSEL stabilization system 

摘      要：To improve the time and frequency reference standards used for radio astronomy and high precision atomic physics applications, we describe a novel stable frequency transmission technique. The approach uses a vertical-cavity surface-emitting laser(VCSEL) based phase correction actuator. Using a frequency mixing process for feedback control, the phase noise induced along the 26 km G.655 optical fibre link was actively reduced. This was achieved by using a 1 310 nm dither controlled VCSEL phase error correction actuator together with the inherent chromatic dispersion properties of the fibre. The technique corrects phase noise and optical signal drift along the fibre at the transmission end. Fractional frequency instabilities across the G.655 fibre link of 4.44×10-12 at 1 s and 4.86×10-14 at 104 s are successfully reported.