Results 281 to 290 of about 3,214,955 (326)
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Slab coupled optical fiber sensor calibration
Review of Scientific Instruments, 2013This paper presents a method for calibrating slab coupled optical fiber sensors (SCOS). An automated system is presented for selecting the optimal laser wavelength for use in SCOS interrogation. The wavelength calibration technique uses a computer sound card for both the creation of the applied electric field and the signal detection.
B, Whitaker +6 more
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Coherently coupled high-power fiber arrays
SPIE Proceedings, 2006A four-element fiber array has demonstrated 470 watts of coherently phased, linearly polarized light. The results of this experiment as well as comparisons to other fiber array approaches will be presented.
M. Wickham +7 more
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2015
In modern optical communication systems, it is of the highest importance to transmit as much optical power from the transmitter to the receiver. It seems that future systems will not be that strongly dependent on good optical waveguides . Actually, even after 25 years of existence of low-loss glass fibers , the coupling efficiency remains the biggest ...
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In modern optical communication systems, it is of the highest importance to transmit as much optical power from the transmitter to the receiver. It seems that future systems will not be that strongly dependent on good optical waveguides . Actually, even after 25 years of existence of low-loss glass fibers , the coupling efficiency remains the biggest ...
openaire +1 more source
Estimation of coupling power parameter of fused coupled fibers
SPIE Proceedings, 2008Fiber couplers are widely used in telecommunications and industry as passive splitting power devices. The effective power coupling and transmission from one fiber to another is mainly determined by both the coupling length and the coupling coefficient.
Toto, Saktioto +3 more
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ACS Applied Materials and Interfaces, 2020
Interfacial bonding between fiber and matrix plays an essential role in composites, especially in fiber reinforced cementitious composites that are superior forms for bearing flexural and tension load in construction applications.
A. Zhou +5 more
semanticscholar +1 more source
Interfacial bonding between fiber and matrix plays an essential role in composites, especially in fiber reinforced cementitious composites that are superior forms for bearing flexural and tension load in construction applications.
A. Zhou +5 more
semanticscholar +1 more source
Resonant directional coupling of hollow Bragg fibers
Optics Letters, 2004Coupling between the lowest-loss TE01 modes of two touching hollow-core Bragg fibers is considered with a view to designing a directional coupler. We have found that for fibers with core radii larger than 10 microm one can identify broad frequency ranges in which intermodal coupling strength exceeds supermode radiation losses by an order of magnitude ...
Maksim, Skorobogatiy +2 more
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Intensity noise coupling in soliton fiber oscillators
Optics Letters, 2016We present an experimental and numerical study on the spectrally resolved pump-to-output intensity noise coupling in soliton fiber oscillators. In our study, we observe a strong pump noise coupling to the Kelly sidebands, while the coupling to the soliton pulse is damped.
Wan, Chenchen +5 more
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Fiber-coupled AOTF spectrometers
SPIE Proceedings, 2006Acousto-optic (AO) technology is used to design compact, vibration-insensitive spectrometers with fairly high sensitivity and resolution. The design of such AO spectrometers (AOS's) is based on the phenomenon of an anisotropic Bragg diffraction in a birefringent crystal, i.e., quartz, lithium niobate, tellurium dioxide (TeO 2 ), etc.
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, 2020
The poor frost resistance of low-calcium geopolymer concrete is an urgent problem that needs to be solved before its application in practice. In this study, polypropylene (PP) fiber, polyvinyl alcohol (PVA) fiber and steel (S) fiber were added to enhance
Yuan Yuan +6 more
semanticscholar +1 more source
The poor frost resistance of low-calcium geopolymer concrete is an urgent problem that needs to be solved before its application in practice. In this study, polypropylene (PP) fiber, polyvinyl alcohol (PVA) fiber and steel (S) fiber were added to enhance
Yuan Yuan +6 more
semanticscholar +1 more source
Fiber mode coupling in transmissive and reflective tilted fiber gratings
Applied Optics, 2000Whereas core-mode reflection and core-mode-to-radiation-mode coupling in tilted fiber Bragg gratings is well understood, as is coupling between a core mode and higher-order core and cladding modes in untilted gratings, here we analyze in detail the coupling among core modes and cladding modes in reflective and transmissive tilted fiber gratings.
K S, Lee, T, Erdogan
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