Results 191 to 200 of about 41,983 (250)
Multiple reflection: A Route to enhanced sensitivity in beam-deflection optical ultrasound sensing. [PDF]
PhotoacousticsYou Y, Niu P, Ma Y, Zhang P.
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Pulsed Raman Lasing in Diode-Pumped Multimode Graded-Index Fiber with Tuned Femtosecond-Laser-Inscribed Bragg Grating. [PDF]
Micromachines (Basel)Kuznetsov AG +4 more
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A rigorous theoretical model of fluorescence-based fiber optic sensors: application to D-shaped fibers. [PDF]
Sci RepBaghapour S +4 more
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A Review of Transverse Mode Adaptive Control Based on Photonic Lanterns. [PDF]
Micromachines (Basel)Lu Y, Jiang Z, Chen Z, Sun Z, Liu T.
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Applied Optics, 1978
Two types of multimode fiber couplers made from plastic-clad fibers are described: (1) cross type couplers with coupling efficiencies from 30 dB to 50 dB depending on the crossover angle; and (2) parallel type couplers with low transmission loss and coupling efficiencies from 15 dB to 30 dB depending on the coupling length.
K, Ogawa, A R, McCormick
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Two types of multimode fiber couplers made from plastic-clad fibers are described: (1) cross type couplers with coupling efficiencies from 30 dB to 50 dB depending on the crossover angle; and (2) parallel type couplers with low transmission loss and coupling efficiencies from 15 dB to 30 dB depending on the coupling length.
K, Ogawa, A R, McCormick
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Toward multimode-fiber shape sensing
Optics Letters, 2023We demonstrate machine-learning assisted dynamic tracking of the shape of a multimode fiber whose spatial configuration is manipulated by the movement of three linear stages. The data source used for the analysis is the coherent speckle pattern of light that has made a round trip in the fiber.
Barak Hadad +4 more
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Multimode inhomogeneous fiber couplers
Applied Optics, 1979A numerical technique to obtain the wave behavior in tightly coupled multimode fibers with inhomogeneous indices is introduced in this paper. The specific problem of the coupling characteristics of two parallel multimode fibers whose index profile is parabolic is treated in detail. It was found that in spite of the fact that rather complicated coupling
C, Yeh, W P, Brown, R, Szejn
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Phase-Conjugate Multimode Fiber Gyro
Topical Meeting on Photorefractive Materials, Effects, and Devices, 1987Modal scrambling is a source of noise and signal fading in fiber-optic gyros1 and therefore the best fiber-optic gyros use single-mode polarization preserving fiber and couplers2. Phase-conjugation can be used to correct for modal scrambling3-5 and to make fiber-optic gyros6-9.
I, McMichael, P, Beckwith, P, Yeh
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Multimodal imaging through a multimode fiber
Opto-Acoustic Methods and Applications in Biophotonics IV, 2019We present a ultra-thin system that combines optical resolution photoacoustic microscopy and fluorescence imaging based on a multimode fiber and a fiber optical hydrophone with only 250µm cross section.
Antonio Miguel M. Caravaca Aguirre +4 more
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