East China Normal University

Chongqing Institute of East China Normal University

Shanghai Langyan Optoelectronics Technology Co., Ltd.

Roi Optoelectronics Technology Co, Ltd.

Xuling Shen

Heping Zeng

Shuang Li

Xiuqi Wu

A method and a system for automatically controlling mode-locking of an optical frequency comb, where the stored control parameters of the working condition in the mode-locked state is combined with the collected working feedback parameters of the optical frequency comb system to dynamically adjust and control the working power of the pump source or/and the temperature of the working environment of the pump source, which not only greatly shortens the control time for stable mode-locking and realizes a fast mode-locking control, but also reduces unnecessary power consumption, thereby further guaranteeing the energy-saving effect of power adjustment control process. The present disclosure well maintains the stable working conditions of the optical comb system, and realizes the mode-locking optimization control of an update mode for the big data, thereby effectively improving the mode-locking control process of the optical frequency comb system, and providing higher operation stability and measurement accuracy.

Method and system for automatically controlling mode-locking of a optical frequency comb

Provided are a time and frequency control method and system for optical comb. The method includes: controlling an optical comb measuring system to start and to generate an optical comb; obtaining monitoring data, wherein the monitoring data comprises a working temperature, a mode-locked frequency and a light pump power, wherein the mode-locked frequency comprises a repetition frequency and a carrier envelope phase locked at the end of starting the optical comb measuring system; determining whether an offset of the mode-locked frequency exceeds a self-feedback adjustment range of a hardware adjustment circuit; and in response to any of the repetition frequency and the carrier envelope phase exceeds the self-feedback adjustment range, adjusting the working temperature and the light pump power until the mode-locked frequency returns back into the self-feedback adjustment range.

Time and frequency method and system for optical comb

A method and a system for controlling an optical frequency comb, where the working power of the pump source is dynamically adjusted and controlled, which not only greatly shortens a control time of a stable mode-locking and realizes a fast mode-locking control, but also quickly stabilizes the power control of stable working condition, thereby reducing unnecessary power consumption caused by power reciprocating oscillation tracking controls and better achieving the energy-saving effect of the power adjustment control process. The temperature of the working environment of the pump source is dynamically adjusted and controlled, so that the environment temperature can quickly reach the reference environment temperature required for mode-locking, which not only creates a good temperature condition for the mode-locking of the optical comb system, but also improves the efficiency of environment temperature stability control in the stable working conditions.

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Shanghai, China

Xuling Shen