Design and Characterization of a Fourier Transform Micro-Spectrometer

Shou Hua Wang; Hong Bin Yu; Fook Siong Chau; X.S. Tang

doi:10.4028/www.scientific.net/AMR.74.211

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A Pendulum-Like Structure for Design of Oscillators
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Design and Characterization of a Fourier Transform Micro-Spectrometer
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 74Design and Characterization of a Fourier Transform...

Design and Characterization of a Fourier Transform Micro-Spectrometer

Abstract:

In this paper, we present a Fourier Transform micro-spectrometer which works based on a lamellar grating interferometer. The spectrometer model is electrostatically driven by parallel plate actuators which change the optical path difference (OPD) between movable grating facets and fixed ones. With a 200V input voltage, a maximum OPD of 48.7μm is achieved. The spectrum of a combined light source of a diode-pumped solid-state (DPSS) laser (λ=532.0nm) and a laser diode (λ=637.2nm) is experimentally acquired to demonstrate the performance of the model. The reconstructed spectrum displays two separate spectral peaks at 530.5nm and 635.2nm and the corresponding full-width at half-maximum (FWHM) resolutions are 9.8nm and 12.8nm respectively, indicating good wavelength accuracy and optical resolution.