Journal ArticleDOI
Single-mode optical-waveguide fiber coupler.
TLDR
A single-mode fiber coupler to the Ti diffused LiNbO(3) strip waveguide has been devised that has a special feature wherein coupling degradation caused by fiber displacement after connection can be recovered to the initial state.Abstract:
A single-mode fiber coupler to the Ti diffused LiNbO3 strip waveguide has been devised. The influences of three axial displacements and two angular misalignments on the coupling efficiency have been investigated at 6328-A wavelength. The coupler has a special feature wherein coupling degradation caused by fiber displacement after connection can be recovered to the initial state. The total optical insertion loss is 3 dB after fixing the fiber to the LiNbO3 strip waveguide, which is 4 μm wide and 8 mm long.read more
Citations
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Journal ArticleDOI
Optical properties of titanium-diffused LiNbO(3) strip waveguides and their coupling-to-a-fiber characteristics.
Masaharu Fukuma,Juichi Noda +1 more
TL;DR: Optical propagation losses and coupling losses in Ti-diffused strip waveguides, fabricated in y-plate and z-plate LiNbO(3), have been examined at 1.15-,microm wavelength.
Journal ArticleDOI
Traveling wave optical modulator using a directional coupler LiNbO 3 waveguide
K. Kubota,J. Noda,O. Mikami +2 more
TL;DR: In this article, a broadband LiNbO 3 waveguide directional coupler optical modulator was constructed by conventionaly Ti in-diffusion into a cut plate and measured the phase difference average value along the propagation directions.
Journal ArticleDOI
Directional coupler switches, modulators, and filters using alternating Δβ techniques (Invited Paper)
R.L. Schmidt,R. Alferness +1 more
TL;DR: The principles of operation and current status of single-mode optical directional coupler switches, modulators, and filters using \Delta \beta reversal techniques are reviewed in this paper, where the same authors also present a review of the current state of the optical coupler switch design.
Journal ArticleDOI
High-efficiency broadband light coupling between optical fibers and photonic integrated circuits
TL;DR: In this paper, the authors survey three major light coupling methods between optical fibers and integrated waveguides: end-fire coupling, diffraction grating-based coupling, and adiabatic coupling.
Journal ArticleDOI
Fiber attachment for guided wave devices
TL;DR: In this article, the status of fiber attachment to guided wave devices is reviewed and current methods for achieving low fiber-waveguide-fiber insertion loss are discussed and techniques for aligning and permanently attaching fibers are described.
References
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Journal ArticleDOI
Optimum Excitation of Optical Surface Waves
TL;DR: In this paper, the authors generalized the theory of the prism-film coupler to include cases in which the thicknesses of both the coupling gap and of the light-guiding film vary along the direction of propagation.
Journal ArticleDOI
Experiments on light waves in a thin tapered film and a new light‐wave coupler
P. K. Tien,R. J. Martin +1 more
TL;DR: In this paper, experiments in an asymmetric optical waveguide were conducted on a dielectric film with a tapered edge, where a guided light wave can be totally reflected or it can enter into the substrate as radiation modes.
Journal ArticleDOI
Thin-Film Laser-to-Fiber Coupler.
TL;DR: A laser-to-fiber coupler is described in which a thin-film waveguide is used to focus an incoming laser beam into the core of a cladded fiber.
Journal ArticleDOI
Electro‐optic amplitude modulation using three‐dimensional LiNbO3 waveguide fabricated by TiO2 diffusion
TL;DR: In this article, an almost singlemode waveguiding layer has been fabricated by thermal diffusion of TiO2 into LiNbO3, and an amplitude modulation has been made with a stripe waveguide 10 μm wide and planar electrodes.
Journal ArticleDOI
Thin grating couplers for integrated optics: an experimental and theoretical study.
TL;DR: A detailed account is given of the practical and theoretical aspects of grating or periodic couplers, used to launch light into thin film optical waveguides.
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