# \#ofdr

**URL:** https://forum.ofscn.net/tag/ofdr/25.md

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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)?

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## [Limits of “Miniaturized” Packaging](https://forum.ofscn.net/t/limits-of-miniaturized-packaging/346)

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**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\
**Replies:** 1\
**Last updated:** [January 22, 2026, 12:11pm UTC](https://forum.ofscn.net/t/limits-of-miniaturized-packaging/346 "2026-01-22T12:11:27Z")

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What is the smallest outer diameter OFSCN can currently achieve? What minimally invasive medical scenarios is it used in?

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## [Why can OFSCN® Sensors Operate Stably at 300°C Long-term?](https://forum.ofscn.net/t/why-can-ofscn-sensors-operate-stably-at-300-c-long-term/336)

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**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\
**Replies:** 1\
**Last updated:** [January 22, 2026, 12:04pm UTC](https://forum.ofscn.net/t/why-can-ofscn-sensors-operate-stably-at-300-c-long-term/336 "2026-01-22T12:04:04Z")

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Many manufacturers claim 300°C but only for short-term use. What is the material matching logic behind OFSCN’s long-term reliability?