The third kind of grating, called a rocking filter or polarization coupler, couples light from one polarization mode of a highly birefringent fiber into the orthogonal polarization mode, again in the forward direction.
Read MoreStep 3: Extract 3D design and GDS file The optimized grating coupler component shape with curved gratings will be exported into GDS II format and into a 3D
Read MoreFiber Bragg Grating (FBG) is defined as a sensing technology that utilizes gratings inscribed in optical fiber to enhance strain measurements by shifting the Bragg wavelength of output light in response to
Read MoreDemonstrated grating couplers are promising for Si3N4 photonic chip prototyping by using standard optical fibers, leveraging low-cost and foundry-compatible fabrication technologies,
Read MoreAbstract This paper presents a novel few-mode tilted long period fiber grating (FM-TLPFG) mode filter based on the dual-peak resonance near phase-matching turning point (PMTP). On the
Read MorePhotosensitivity refers to a permanent change in the index of refraction of the fiber core when exposed to light with characteristic wavelength and intensity that depend on the core material. The fiber Bragg
Read MoreThe 2D grating coupler acts as a polarization demultiplexer by coupling two orthogonal fiber guided modes, LP 01 x and LP 01 y, and splitting them into two individual waveguides extending
Read MoreIn this work, aimed at enlarging the mode distribution for more spatially tolerant light coupling, we propose the use of large area 2D subwavelength grating couplers (LGCs) in matic of the fiber-to-chip
Read MoreFinally, we discuss some emerging research topics on grating couplers, as well as practical issues such as testing, packaging and promising applications.
Read MoreA wavelength-selective coupler constructed with two parallel long-period fiber gratings (LPFGs) was investigated thoroughly. Both the numerical and experimental results verified that the
Read MoreWe have demonstrated a novel add/drop filter for use in wavelength-division-multiplexing (WDM) optical fiber systems based on a Bragg grating
Read MoreA four-port grating coupler with etched square holes is proposed and demonstrated for surface-normal and polarization independent coupling. Benefiting from the perfectly vertical coupling and 1 × 4 power
Read MoreWe present a theoretical study of a spectral filter, which consists of a diffraction grating, a coupling lens, and an optical fiber. As the diffracted beam is highly dispersed spatially, coupling into
Read MoreHowever, for practical applications, our coupled-core fiber Bragg gratings must be properly packaged as bare optical fibers can be easily broken when they are bent.
Read MoreA grating coupler is defined as a device that uses a periodic structure to diffract light in and out of an optical fiber by directing vertically incident light into waveguides through the principle of diffraction. Its
Read MoreA new type of panda fiber grating coupler is proposed, which has the characteristics of fiber grating and fiber coupler, especially the capability of maintaining polarization.
Read MoreGuided-mode resonance or waveguide-mode resonance is a phenomenon wherein the guided modes of an optical waveguide can be excited and simultaneously extracted by the introduction of a phase
Read MoreThese grating couplers can be used in a distributed Bragg reflector laser (DBR laser) or in a distributed feedback laser (DFB laser) to provide optical feedback without
Read MoreThis work addresses the tailoring spectral response of grating-assisted co-directional couplers (GADCs) in the context of wavelength filtering for fiber-to-the-home
Read MoreA new type of low-frequency magnetic-field sensor based on fiber Bragg gratings (FBGs) was experimentally demonstrated for measuring the DC to
Read MoreAbstract – Recently, optical fiber Bragg grating have attracted a great deal of attention because of their importance in designing new devices to meet a need range of optical communication systems. An
Read MoreSimulated coupling efficiency and cross talk for the three-port grating coupler with a fiber tilt angle θ = 10 • and 2.2 µm away from the origin. a)
Read MoreDesign a grating coupler connecting a single-mode fiber on the surface of a photonic chip to an integrated waveguide. The built-in particle swarm optimization tool is
Read MoreFiber grating filters, as key fiber optic devices in optical communications, play an important role in various segments . Depending on the filtering function, they can be divided into different
Read MoreGrating couplers are essential building blocks to integrated photonic circuits, as they allow surface access to the photonic chip. They are most commonly used in combination with an optical fiber,
Read MoreExternal-cavity diode lasers are non-monolithic diode lasers where the laser cavity (resonator) is completed with external optical elements.
Read MoreMathematical models for the realisation, characterization, and simulation of fiber Bragg gratings (FBGs) are required to design gratings for various purposes. In this article, a review of the
Read MoreFiber Bragg Grating (FBG) is defined as a passive filter device that consists of a diffraction grating created by periodic modulation of the refractive index in the fiber core, allowing it to reflect specific
Read More+27 10 247 8396
Unit 7, Summit Place, 21 Summit Rd, Midrand, Johannesburg, 1685, South Africa
