Research on Current Compensation Method for Wavelength Jumping in MG-Y Laser

WANG Di; ZHUANG Wei; ZHANG Xu; WANG Le; LIU Wanquan

doi:10.13756/j.gtxyj.2025.230183

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Research on Current Compensation Method for Wavelength Jumping in MG-Y Laser

更新时间：2025-02-17

- Research on Current Compensation Method for Wavelength Jumping in MG-Y Laser
- Study on Optical Communications Issue 1, (2025)
- 作者机构：
  
  1.北京信息科技大学　光电信息与仪器北京市工程研究中心，北京　 100192
  2.北京信息科技大学　光纤传感与系统北京实验室，北京　 100016
  3.天津大学，天津　 300072
  4.澳大利亚科廷大学，澳大利亚　珀斯　 6102
  5.广州南沙光子感知技术研究院，广州　 511462
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2025.230183
  CLC： TN248
- Published：10 February 2025，
  
  Received：24 December 2023，
  
  Revised：27 December 2023，
- 稿件说明：
移动端阅览
汪迪，庄炜，张旭，等. MG-Y激光器波长跳变的电流补偿方法研究[J]. 光通信研究，2025(1): 230183.

Wang D, Zhuang W, Zhang X, et al. Research on Current Compensation Method for Wavelength Jumping in MG-Y Laser[J]. Study on Optical Communications, 2025(1): 230183.
汪迪，庄炜，张旭，等. MG-Y激光器波长跳变的电流补偿方法研究[J]. 光通信研究，2025(1): 230183. DOI： 10.13756/j.gtxyj.2025.230183.

Wang D, Zhuang W, Zhang X, et al. Research on Current Compensation Method for Wavelength Jumping in MG-Y Laser[J]. Study on Optical Communications, 2025(1): 230183. DOI： 10.13756/j.gtxyj.2025.230183.

摘要

【目的】

在当前航天领域的高速发展下，对光纤传感解调系统的性能提出了更为严格的要求。文章旨在解决调制光栅Y分支（MG-Y）激光器在通道切换时出现的波长跳变问题，从而提高激光器的波长稳定性，进而提升光纤传感解调系统在高速扫描下对振动信号的解析精度。

【方法】

通过深入研究MG-Y激光器的调谐特性，文章揭示了切换频率对输出波长的显著影响，并在此基础上建立了不同切换频率下激光器的波长跳变模型。基于波长跳变模型，设计和搭建MG-Y激光器波长跳变补偿系统，并提出了基于通道内电流规律的波长偏差补偿方法，通过调整通道切换处的3路电流，实现对波长误差的精准补偿，从而有效解决了波长跳变问题。

【结果】

实验结果表明，切换频率与波长偏差之间存在对数关系，通过实验数据拟合得到了波长偏差与切换频率的关系式。进一步的实验验证表明，通过对通道切换处的3路电流进行补偿，波长误差在1 pm以内，表现出了显著的性能提升。

【结论】

通过该补偿方法，波长偏差得到了显著减小，MG-Y激光器的波长稳定性得到了明显提升。文章不仅在理论上填补了高速振动环境下光纤传感解调系统的技术空白，更直接助力了国家在航天装备领域核心竞争力的提升，具有深远的科学和应用价值。

Abstract

【Objective】

In the current rapidly advancing aerospace field

more stringent requirements are placed on the performance of fiber optic sensing demodulation systems. This study aims to address the wavelength hopping issue in the Modulated Grating Y-branch (MG-Y) laser during channel switching

so as to improve the wavelength stability of the laser and improve the resolution accuracy of the vibration signal in the fiber sensing demodulation system under high-speed scanning.

【Methods】

Through an in-depth investigation of the tuning characteristics of the MG-Y laser

we revealed the significant impact of switching frequency on the output wavelength. Then

we developed a wavelength hopping model for the MG-Y laser at different switching frequencies. Based on this model

we designed and implemented a wavelength hopping compensation system for the MG-Y laser. Additionally

we proposed a compensation method based on the internal channel current regulation. This method involves precise adjustment of the three-channel currents at the channel switching point to effectively compensate for wavelength errors and resolve the wavelength hopping issue.

【Results】

The experimental results demonstrated a logarithmic relationship between switching frequency and wavelength deviation. By fitting the experimental data

we derived a relationship formula for wavelength deviation concerning switching frequency. Further experimental validation showed that by compensating for the three-channel currents at the channel switching point

wavelength errors were reduced to within 1 pm

indicating a significant improvement in performance.

【Conclusion】

Consequently

this compensation method led to a substantial reduction in wavelength deviation

enhancing the wavelength stability of the MG-Y laser. The article not only fills the technical gap in the field of optical fiber sensing demodulation systems under high-speed vibration environments in theory

but also directly contributes to enhancing the country's core competitiveness in the aerospace equipment sector

with large scientific and application value.

关键词

Keywords

references

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Related Author

ZHANG Zijiao

LIU Wanquan

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Related Institution

Beijing Engineering Research Center of Optoelectronic Information and Instruments, Beijing Information Science and Technology University

Beijing Laboratory of Optical Fiber Sensing and System, Beijing Information Science and Technology University

School of Precision Instrument and Opto-Electronics Engineering, Tianjin University

Faculty of Information Technology, Beijing University of Technology

Computer Science Department, Curtin University

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