Definition of window

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Sheetak - Cooling at your Fingertip 11/24 LB

Photonics Dictionary

window: 1. A piece of glass with plane parallel surfaces used to admit light into an optical system and to exclude dirt and moisture. 2. A particular region of the electromagnetic spectrum that has been singled out for some purpose; for example, the region near 850 nm at which optical fibers operate with lowered losses often is referred to as the first window.

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