A sensor consisting of a laser interferometer, a wavelength Sensors 2016, 16, 1424; doi:10.3390/s16091424 www.mdpi.com/journal/sensors Sensors 2016, 16, 1424 2 of 14 encoder and an electronic computing device as well as a displacement indicator was proposed for RI sensing based on the ...
A small driver works at a constant current or constant power mode to drive a laser diode to output linearly polarization light. The incident light is split into three beams with factors K1, K2, and (1 – K1– K2) with an optical splitter, where 0.001 < K1 < 0.999, Appl. Sci. 2019,...
The optical–thermal behavior of the het- erostructure under near-infrared (1064 nm) laser irradiation was examined, revealing its efficient response to light within the communication wavelength range. Finally, UV–vis diffuse reflectance spectroscopy (DRS) tests were conducted to assess the bandgaps...
The wavelength of the laser source can be tuned with 10 fm accuracy. GRIN fibers are often used to avoid temporal distortion in a signal due to modal dispersion. A beam expansion is achieved by a set of lenses (L1: f = 200 mm, OBJ1: 10×, Newport, Irvine, CA, USA) placed at ...