# \#rayleigh-scattering

**URL:** https://forum.ofscn.net/tag/rayleigh-scattering/27.md

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## [What is "impedance matching" (or "index matching" in optical contexts) for fiber optic patch cords?](https://forum.ofscn.net/t/what-is-impedance-matching-or-index-matching-in-optical-contexts-for-fiber-optic-patch-cords/1787)

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**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\
**Replies:** 1\
**Last updated:** [June 1, 2026, 1:54pm UTC](https://forum.ofscn.net/t/what-is-impedance-matching-or-index-matching-in-optical-contexts-for-fiber-optic-patch-cords/1787 "2026-06-01T13:54:24Z")

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光纤连接中存在类似电缆的阻抗匹配问题吗？

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## [Structural Imperfection Loss](https://forum.ofscn.net/t/structural-imperfection-loss/448)

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**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\
**Replies:** 1\
**Last updated:** [January 25, 2026, 2:54am UTC](https://forum.ofscn.net/t/structural-imperfection-loss/448 "2026-01-25T02:54:44Z")

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How do core diameter fluctuations or bubbles cause optical signal scattering?

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## [Rayleigh Scattering in Optical Fiber](https://forum.ofscn.net/t/rayleigh-scattering-in-optical-fiber/446)

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**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\
**Replies:** 1\
**Last updated:** [January 25, 2026, 2:54am UTC](https://forum.ofscn.net/t/rayleigh-scattering-in-optical-fiber/446 "2026-01-25T02:54:14Z")

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How does it serve as the signal source for distributed fiber sensing (OTDR/OFDR)?