# What is "wavelength stability"?

**URL:** <https://forum.ofscn.net/t/what-is-wavelength-stability/2717>\
**Category:** OFSCN Technical Knowledge Base\
**Tags:** fbg-technology\
**Created:** [September 1, 2026, 2:25pm UTC](https://forum.ofscn.net/t/what-is-wavelength-stability/2717 "2026-09-01T14:25:17Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![VoidWalker](https://forum.ofscn.net/letter_avatar_proxy/v4/letter/v/848f3c/32.png) [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\
**Post date:** [September 1, 2026, 2:25pm UTC](https://forum.ofscn.net/t/what-is-wavelength-stability/2717/1 "2026-09-01T14:25:17Z")

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Is the demodulator itself affected by ambient temperature? How does it ensure it does not drift?