WebAug 11, 2011 · A compact and stable dual-wavelength laser source based on frequency-doubled telecom lasers locked on a femtosecond optical frequency comb is presented, which has shown its robustness by achieving the first dual-species K-Rb magneto-optical trap in microgravity during parabolic flights. We present a compact and stable dual … WebDec 1, 2011 · A dual beat-frequencies laser Doppler interferometer which can measure high speed back and forth motion is proposed and demonstrated. In this interferometer, …
Dual-wavelength Michelson interferometer employing time delay ...
WebJan 16, 2024 · Simultaneous dual-wavelength interferometry (SDWI) could extend the measured range of each single-wavelength interferometry. The moiré fringe generated in SDWI indirectly represents the information of the measured long synthetic-wavelength ( λ S ) phase, thus the phase demodulation is rather arduous. To address this issue, we … WebMay 15, 2024 · A fast and simple demodulation method for the variation of Fabry–Perot (FP) cavity length is proposed and demonstrated. Taking advantages of differentially detecting optical power intensities of dual-wavelength, a reliable linear correlation between the variation of FP cavity length and differential intensity ratio of dual-wavelength can be … for women scotland limited
Fast and simple interrogation of extrinsic Fabry–Perot interferometer ...
WebNov 1, 2024 · A simultaneous phase-shifting dual-wavelength interferometry based on two-step demodulation algorithm is proposed in this Letter. First, two lasers with different wavelengths go through the same ... WebApr 25, 2014 · A 40-km long dual-Sagnac sensor was formed by spectral slicing of light from a single, broad-band erbium-doped-fiber super-luminescent source and wavelength division multiplexed (WDM) routing ... WebTo correct for misalignment, a general method is described for the alignment of a dual-wavelength interferometer, including the alignment of lasers, beam expanders, beam … directions to tift college