Journal ArticleDOI
A polarization-independent 1 × 16 guided-wave optical switch integrated on lithium niobate
J.E. Watson,M. Milbrodt,T. Rice +2 more
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TLDR
In this article, the fabrication and testing of several models of a complex integrated Ti : LiNbO 3 switch array, a one-input-to-sixteen-output switch that is polarization independent for use with standard singlemode fibers.Abstract:
We report the fabrication and testing of several models of a complex integrated Ti : LiNbO 3 switch array, a one-input-to-sixteen-output switch that is polarization independent for use with standard single-mode fibers. The switch array has 15 directional couplers arranged in a binary tree with four ranks. The device is fitted with connectorized single-mode fiber pigtails and housed in a package that permits convenient transport and use. The best measured losses (fiber-waveguide-fiber) are 3.0 dB for the TE polarization and 3.6 dB for the TM. Permanent attachment of the pigtails adds 0.65-dB loss. Crosstalk suppression averages 10 dB below the transmitted signal for the brightest unwanted path.read more
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Journal ArticleDOI
Integrated optics in LiNbO/sub 3/: recent developments in devices for telecommunications
TL;DR: Recent progress in lithium niobate-based integrated optics is reviewed in this paper, emphasizing applications in the telecommunications area, and the prospect for systems applications for system applications applications are discussed. >
Journal ArticleDOI
Lithium niobate integrated optics
TL;DR: Guided-wave devices demonstrated in lithium niobate have been seen for many years as highly functional components for applications in fields such as optical communications and sensor systems as discussed by the authors, and the subject matter of this article is born from these endeavours.
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.
Journal ArticleDOI
Integrated-optic devices on LiNbO 3 for optical communication
TL;DR: In this article, integrated-optic components on LiNbO 3 for fiber-optical communication systems are reviewed with respect to technology, fiber coupling, and device configurations.
Journal ArticleDOI
Optically-processed routing for fast packet switching
P.R. Prucnal,P.A. Perrier +1 more
TL;DR: The types of network architectures and routing strategies that the authors think are best-suited to optical processing are proposed, and a generic optical routing processor is described.
References
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Journal ArticleDOI
Switched directional couplers with alternating ΔΒ
H. Kogelnik,R. Schmidt +1 more
TL;DR: Coupled waveguide structures with sections of alternating phase mismatch are proposed as switched directional coupler configurations in which complete conversion of light from one guide to the other can be achieved by an electrical adjustment.
Journal ArticleDOI
Filter characteristics of codirectionally coupled waveguides with weighted coupling
TL;DR: In this article, the filter responses for several taper functions with low Fourier transform sidelobes are calculated, and the resulting channel densities when used for wavelength multiplexing are compared.
Journal ArticleDOI
Polarization‐independent optical directional coupler switch using weighted coupling
TL;DR: In this article, the first demonstration of a guided-wave polarization independent electro-optic switch was reported, which achieved crosstalk levels below −23 dB for both switch states for arbitrary incident optical polarization.
Journal ArticleDOI
Efficient single-mode fiber to titanium diffused lithium niobate waveguide coupling for λ = 1.32 µm
TL;DR: In this paper, the authors achieved very high optical throughput for titanium diffused lithium niobate waveguides coupled between input and output singlemode fibers by determining appropriate diffusion parameters to obtain excellent dimensional match between the fiber and waveguide modes and simultaneously low propagation loss.
Journal ArticleDOI
Elimination of cross talk in optical directional couplers
Hermann A. Haus,N. A. Whitaker +1 more
TL;DR: In this article, the authors show that tapering may be used to eliminate cross talk while maintaining negligible radiation and reflection loss in a waveguide directional couplers with unequal excitation of symmetric and antisymmetric modes.