Results 21 to 30 of about 45,931 (274)
Writing Bragg Gratings in Multicore Fibers [PDF]
Journal of Visualized Experiments, 2016 Fiber Bragg gratings in multicore fibers can be used as compact and robust filters in astronomical and other research and commercial applications. Strong suppression at a single wavelength requires that all cores have matching transmission profiles. These gratings cannot be inscribed using the same method as for single-core fibers because the curved ...
Seong-sik Min +6 more
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Study on a Plasmonic Tilted Fiber Grating-Based Biosensor for Calmodulin Detection
Biosensors, 2021 Tilted fiber Bragg grating, which has the advantages of both fiber Bragg grating and long-period fiber grating, has been widely studied for sensing in many fields, especially in the field of biochemistry.
Xiaoyong Chen +5 more
doaj +1 more source
Single-mode sapphire fiber Bragg grating [PDF]
, 2021 We present here the inscription of single-mode waveguides with Bragg gratings in sapphire. The waveguide Bragg gratings have a novel multi-layer depressed cladding design in the 1550 nm telecommunications waveband. The Bragg gratings have a narrow bandwidth (<0.5 nm) and have survived annealing at 1000{\deg}C.
arxiv +1 more source
Fluorinated Polyimide-Film Based Temperature and Humidity Sensor Utilizing Fiber Bragg Grating
Sensors, 2020 We propose and demonstrate a temperature and humidity sensor based on a fluorinated polyimide film and fiber Bragg grating. Moisture-induced film expansion or contraction causes an extra strain, which is transferred to the fiber Bragg grating and leads ...
Xiuxiu Xu +3 more
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Photothermal effects in fiber Bragg gratings
Applied Optics, 2006 Writing a fiber Bragg grating in optical fiber generates an intrinsic broadband absorption term that can result in photothermal heating during subsequent use with fiber core guided light. This, in turn, can cause a significant shift of a grating resonance via the thermo-optic coefficient, even at low in-fiber light powers.
Littler, I, Grujic, T, Eggleton, B
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Multi-wavelength Brillouin Fiber Laser with Fiber Bragg Grating Employs Loop Mirror
MATEC Web of Conferences, 2016 In this paper, the development of multi-wavelength Brillouin fiber laser with fiber Bragg grating utilizing a loop mirror is successfully demonstrated.
Idris N.A. +6 more
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Continuously Tunable Erbium-Doped Fiber Ring Laser Using Fiber Bragg Grating
International Islamic University Malaysia Engineering Journal, 2012 An efficient tunable erbium-doped fiber (EDF) ring laser utilizing a single fiber Bragg grating (FBG) and an optical circulator is investigated. The laser demonstrates a threshold of 3.43 mW and a slope efficiency of 12.5%.
S. W. Harun H. Ahmad and P. Poopalan
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Generalized Resonance Sensor Based on Fiber Bragg Grating
Photonics, 2021 In response to the difficulty of weak detection of early bearing damage, resonance demodulation technology and the principle of fiber Bragg grating sensing strain were combined to design a fiber Bragg grating generalized resonance sensor, which can ...
Xinxin Chen +6 more
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Point-by-point inscription of apodized fiber Bragg gratings [PDF]
Opt.Lett. 36 (2011) 2988-2990, 2011 We demonstrate apodized fiber Bragg gratings inscribed with a point-by-point technique. We tailor the grating phase and coupling amplitude through precise control over the longitudinal and transverse position of each laser-inscribed modification. This method of apodization is facilitated by the highly-localized, high-contrast modifications generated by
arxiv +1 more source
Chebyshev apodized fiber Bragg gratings
Science Progress, 2021 In this paper, a new apodized fiber Bragg grating (FBG) structure, the Chebyshev apodization, is proposed. The Chebyshev polynomial distribution has been widely used for the optimal design of antennas and filters, but it has not been used for designing FBGs.
Nai-Hsiang Sun +3 more
openaire +2 more sources