Research the reverse isolation of reverse optical fiber coupler

Citation

龙润泽, 张 昆, 张利明. (2022). 反向光纤耦合器反向隔离特性研究 [Research the reverse isolation of reverse optical fiber coupler]. 激光杂志 (LASER JOURNAL), 43(1), [not available in provided excerpts]. https://doi.org/10. 14016 / j. cnki. jgzz. 2022. 01. 070

Keywords

  • Reverse Optical Fiber Coupler
  • Reverse Isolation
  • High-Power Narrow Linewidth Fiber Laser
  • End-Pump Coupling Technology
  • Fiber Laser
  • Narrow Linewidth
  • High Power
  • *(2+1)
  • *(18+1)
  • Waist Beam Cross-Section
  • Signal Fiber Diameter
  • Fiber Arrangement
  • Pump Light Source Protection
  • Fused Taper Technique (熔融拉锥法)

Brief

This article investigates the reverse isolation characteristics of reverse optical fiber couplers, crucial components in high-power narrow linewidth fiber lasers for pump source protection, by analyzing the influence of physical factors like signal fiber diameter and fiber arrangement in the coupler's waist beam cross-section using (2+1)*1 and (18+1)*1 couplers.

Summary

This article examines the reverse isolation properties of reverse optical fiber couplers, crucial for protecting pump lasers in high-power narrow linewidth fiber lasers. The study found that larger signal fiber diameters in (2+1)*1 couplers and compact, regular fiber arrangements with the signal fiber near the center in both (2+1)*1 and (18+1)*1 couplers lead to higher reverse isolation. The research provides valuable insights for designing more reliable high-power fiber laser systems.

Origin: https://doi.org/10. 14016 / j. cnki. jgzz. 2022. 01. 070

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