Absorption tester for optical components

Optics: measuring and testing – For light transmission or absorption

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374 32, 374 45, G01N 2100, G01K 1700

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active

058943528

ABSTRACT:
The preferred embodiment of the invention measures the temperature increase of a light-transmitting optical component to determine the optical absorption of the optical component. Accurately determining the optical absorption of light-transmitting optical components advantageously allows for the accurate and efficient selection of light-transmitting optical components for use in an optical system. In one embodiment, an optical absorption tester holds multiple optical components and, for each optical component, the tester includes a temperature sensor placed in contact with the optical component and a reference temperature sensor placed in the vicinity of the optical component.

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D. A. Pinnow and T. C. Rich, Development of a Calorimetric Method for Making Precision Optical Absorption Measurements, Applied Optics, vol. 12, No. 5, pp. 984-992, May 1973.
E. D. West and L. B. Schmidt, Spectral-absorptance measurements for laser calorimetry, Journal of the Optical Society of America, pp. 573-578, Feb. 1975.
T. J. Magee, N.M. Johnson, M. Lehmann, J. Peng, and J. Hannigan, Compact calorimeter for measuring laser absorption coefficients of small samples, Review of Scientific Instriments, vol. 47, No. 3, pp. 301-302, Mar. 1976.
T. I. Bryushkova, E. M. Nikitin, and A. M. Prokhorov, Measurement of low absorption coefficients of glasses by a calorimetric method, Sov. J. Quantum Electron, vol. 6, No. 11, pp. 1373-1375, Nov. 1976.
M. Hass, J. W. Davisson, H. B. Rosenstock, J. Babiskin, Measurement of very low absorption coefficients by laser calorimetry, applied Optics, vol. 14, No. 5, pp. 1128-1130, May 1975.

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