High Efficiency Coupling Technology of Silicon Photonic Modulator and Single-Mode Optical Fiber

TAN Zhong-xiang; FU Yan-feng; HU Sheng-lei; WANG Ning; ZHANG De-chuan; XIAO Xi

doi:10.13756/j.gtxyj.2021.04.010

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High Efficiency Coupling Technology of Silicon Photonic Modulator and Single-Mode Optical Fiber

- High Efficiency Coupling Technology of Silicon Photonic Modulator and Single-Mode Optical Fiber
- Study on Optical Communications Issue 4, Pages: 50-55(2021)
- 作者机构：
  
  1.武汉邮电科学研究院，武汉　430074
  2.国家信息光电子创新中心，武汉　430074
  3.武汉光迅科技股份有限公司，武汉　430205
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2021.04.010
  CLC： TN29
- Published：10 August 2021，
  
  Received：09 November 2020，
扫描看全文
TAN Zhong-xiang, FU Yan-feng, HU Sheng-lei, et al. High Efficiency Coupling Technology of Silicon Photonic Modulator and Single-Mode Optical Fiber. [J]. Study on Optical Communications (4):50-55(2021)
DOI：

TAN Zhong-xiang, FU Yan-feng, HU Sheng-lei, et al. High Efficiency Coupling Technology of Silicon Photonic Modulator and Single-Mode Optical Fiber. [J]. Study on Optical Communications (4):50-55(2021) DOI： 10.13756/j.gtxyj.2021.04.010.

摘要

针对硅光芯片在应用中由于其模场较小存在耦合损耗较大的问题，文章利用一款硅光调制器芯片对其与单模光纤的耦合效率进行了研究。首先对模场匹配理论进行了分析，随后对硅光芯片以及耦合用的单模光纤进行了模场测试，提出了一种提高耦合效率的低成本耦合方式。实验结果表明，该单模光纤与硅光芯片的耦合效率达到70%。利用该方案制作了光组件并进行了四阶脉冲幅度调制（PAM4）眼图测试，得到了较好的眼图。

Abstract

Due to the small mode field of silicon photonic chips

the large coupling loss is a road-blocker for their applications. In this work

the coupling efficiency between a silicon photonic modulator chip and a single-mode optical fiber is investigated. The mode field matching theory is analyzed at first. Then the mode field test of silicon chip and single-mode optical fiber for coupling is carried out. Next

a low-cost coupling method to improve coupling efficiency is proposed. The experimental results show that the coupling efficiency of the single-mode optical fiber and silicon photonic chip reaches 70%. The optical module is made by using this scheme

and the 4 Pulse Amplitude Modulation (PAM4) eye diagram is tested. The experimental results show that better eye diagram can be obtained.

关键词

硅光芯片硅波导耦合效率单模光纤

Keywords

silicon optical chipsilicon waveguidecoupling efficiencysingle mode fiber

references

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