Apparatus for measuring properties of a laser emission

Radiant energy – Infrared-to-visible imaging

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250332, 25037001, 356 731, G01N 2184, G01N 2100

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active

047602570

ABSTRACT:
Apparatus is provided for measuring the numerical apertures of an optical fiber in the infrared region. The optical fiber is appropriately mounted in accordance with conventional testing standards. Infrared energy is transmitted through the optical fiber. At a predetermined distance from the end of the optical fiber, a conversion screen can be provided for transforming the emitted infrared energy into a lesser wavelength of energy. The energy distribution can be recorded with a detector compatible with the lesser wavelength energy whereby the numerical aperture can be computed from the recorded data.

REFERENCES:
patent: 4320462 (1982-03-01), Lund et al.
P. P. Feofilov and V. V. Ovsyankin, "Cooperative Luminescence of Solids", Applied Optics, vol. 6, No. 11 (Nov. 1967), pp. 1828-1833, [Bound Volume in CP04-08D33, S.P.E., John K. Corbin].

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