Results 1 to 10 of about 75,635 (165)
Fiber refractometer based on a fiber Bragg grating and single-mode–multimode–single-mode fiber structure [PDF]
Optics Letters, 2011 A refractive index (RI) sensor based on a novel fiber structure that consists of a single-mode-multimode-single-mode (SMS) fiber structure followed by a fiber Bragg grating was demonstrated. The multimode fiber in the SMS structure excites cladding modes within output single-mode fiber (SMF) and recouple the reflected cladding Bragg wavelength to the ...
Qiang Wu, Yuliya Semenova, Youqiao Ma
exaly +5 more sources
Single-Mode ZBLAN Fiber Couplers [PDF]
EPJ Web of Conferences, 2022 We demonstrate single-mode ZBLAN optical fiber couplers. A controlled tapering procedure leads to coupling ratios of 5%/95% and 14%/86% at a wavelength of 2200 nm, with insertion losses of 1.6 dB and 1.8 dB, respectively.
Rezaei Mohsen +3 more
doaj +1 more source
IEEE Access, 2021 We propose and experimentally demonstrate a multi-wavelength thulium-doped fiber laser using two cascaded single-mode-four-mode-single-mode (SFS) fiber interferometers and a 150-m-long highly nonlinear fiber.
Ying Guo +9 more
doaj +1 more source
Frontiers in Physics, 2022 In this paper, we proposed a strategy for achieving all-fiber single-frequency amplifiers with near-diffraction-limited beam quality by using confined-doped fiber.
Wei Li +20 more
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Various Types of Light Guides for Use in Lossy Mode Resonance-Based Sensors
Sensors, 2023 A comparative study of figure-of-merit fiber sensors of the mass concentration of NaCl solutions based on single-mode and multi-mode fibers was carried out.
Dmitriy P. Sudas +2 more
doaj +1 more source
Optical fiber flowmeter based on a single mode-multimode-single mode structure
Frontiers in Sensors, 2022 Single mode-Multimode-Single mode (SMS) sensors have been attracted a relevant attention because of their simple manufacturing, their capability of sensing different quantities, and their enhanced sensitivity compared to the most common fiber optic ...
Massimo Olivero +4 more
doaj +1 more source
Investigation of a Large-Mode-Area Fiber Designed for 2.0 μm Based on Multi-Layer Holes Resonance
IEEE Photonics Journal, 2023 This work proposes a novel large mode area fiber with multi-layer holes of 2.0 μm based on electromagnetic field theory and finite element analysis. Modifying the structure parameters can reduce the fundamental mode confinement loss to less than 0.
Xiao Shen +3 more
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Large Mode Area Single Mode Fiber with a Twisted Polygon-Shaped Core
Photonics, 2022 We present numerical studies on twisted polygon-shaped core fibers for achieving single mode operation with a large mode area propagation in this paper. These large mode area fibers can achieve single mode operation due to twisting-induced high losses to
Kexiong Sun +4 more
doaj +1 more source
Large mode area double-layer all-solid anti-resonant fiber for high-power fiber lasers
Results in Physics, 2021 A novel double-layer all-solid anti-resonant fiber (DL-AAF) is proposed to develop large mode area (LMA) fiber for high-power fiber laser applications. Single-mode property and mode field area scaling are investigated in simulations.
Zhen Xing +3 more
doaj +1 more source
Single Longitudinal Mode Lasers by Using Artificially Controlled Backscattering Erbium Doped Fibers
IEEE Access, 2021 In this work, we propose and experimentally demonstrate a new distributed short linear cavity fiber laser. At one of the cavity ends, fabricated by a commercial femtosecond fiber laser chirped pulse amplifier, an artificially controlled backscattering ...
Rosa Ana Perez-Herrera +4 more
doaj +1 more source