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Optical Bench Design

The heart of the AvaSpec fiber optic spectrometer is an optical bench with 45, 50 or 75 mm focal length, developed in a symmetrical Czerny-Turner design.



Light enters the optical bench through a standard SMA905 connector and is collimated by a spherical mirror. A plane grating diffracts the collimated light; a second spherical mirror focuses the resulting diffracted light. An image of the spectrum is projected onto a 1-dimensional linear detector array. The optical bench has a number of components installed inside, allowing a wide variety of different configurations, depending on the intended application. The choice of these components such as the diffraction grating, entrance slit, order sorting filter, and detector coating have a strong influence on system specifications. Sensitivity, resolution, bandwidth and stray light are further discussed in the following paragraphs.



© 2003-2015. LOKAMED Co.Ltd. E-mail: avantes@rambler.ru, phone (+7 921)936-20-39, fax (+7 812)234-59-73

Last Updated: 15-02-2015

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