Journal ArticleDOI
Electrooptical switching in thin film waveguides for a computer communication bus.
R. A. Becker,W. S. C. Chang +1 more
TLDR
A new crossing multimode channel waveguide electrooptical switch has a 21-dB ONstate/OFF-state difference at 10 V of applied voltage, 0.4-dB insertion loss, 2-pF capacitance, and a total length less than 1.5 mm.Abstract:
A new crossing multimode channel waveguide electrooptical switch is described here. It has a 21-dB on-state/off-state difference at 10 V of applied voltage, 0.4-dB insertion loss, 2.2-pF capacitance, and a total length less than 1.5 mm. It will be useful for providing a switching network for realizing an integrated optical computer communication data bus where electric signals from computers are converted into optical signals, switched by these switches, and then received and reconverted into electrical signals by a detector array.read more
Citations
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Journal ArticleDOI
Analysis and applications of optical diffraction by gratings
Thomas K. Gaylord,M. G. Moharam +1 more
TL;DR: In this article, an exact formulation of the grating diffraction problem without approximations is presented, using a series of fundamental assumptions, which reduces to the various existing approximate theories in the appropriate limits.
Journal ArticleDOI
Digital optical computing
A.A. Sawchuk,T.C. Strand +1 more
TL;DR: The paper begins with a review of analog, discrete, and binary methods of representing information in a computer, followed by a survey of many techniques for implementing binary combinatorial and sequential logic functions with individual optical devices and arrays of devices.
Journal ArticleDOI
Integrated optics components and devices using periodic structures
Toshiaki Suhara,H. Nishihara +1 more
TL;DR: The selected research activities on integrated optics components and devices using periodic structures are reviewed, with emphasis on the authors' works employing the electron-beam writing technique.
Patent
Method for manipulating optical energy using poled structure
TL;DR: In this article, an electric field is applied across the periodic structure, a Bragg grating is formed by the electro-optic effect, reflecting optical radiation with a certain bandwidth around a center wavelength.
Patent
Optical frequency channel selection filter with electronically-controlled grating structures
TL;DR: In this paper, an electric field is applied across the periodic structure, a Bragg grating is formed by the electro-optic effect, reflecting optical radiation with a certain bandwidth around a center wavelength.
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
Electrically switched optical directional coupler: Cobra
M. Papuchon,Y. Combemale,X. Mathieu,D. B. Ostrowsky,L. Reiber,A. M. Roy,B. Sejourne,M. Werner +7 more
TL;DR: In this paper, an integrated optical switch/modulator consisting of an active directional coupler with a novel electrode configuration is presented, in titanium-diffused lithium niobate.
Journal ArticleDOI
Electro‐optically switched coupler with stepped Δβ reversal using Ti‐diffused LiNbO3 waveguides
R. V. Schmidt,H. Kogelnik +1 more
TL;DR: In this article, an experimental electro-optical switched directional coupler is reported which is formed in LiNbO3 by diffused Ti strip waveguides and uses stepped reversed phase mismatching to provide electrical adjustment of both switch states.
Journal ArticleDOI
A new waveguide switch/modulator for integrated optics
TL;DR: In this paper, a waveguide optical switch and/or modulator device is described that uses a single-mode waveguide version of the Mach•Zehnder interferometer, and a mode selective branching waveguide is used for switching, and modulation can be accomplished without external polarizers in singlemode waveguides.
Journal ArticleDOI
Electrically active optical bifurcation: BOA
TL;DR: In this article, an electro-optical switch based on the interference between modes in a two-mode waveguide (equivalent to a directional coupler with no gap between the guides) is achieved by uniformly changing the refractive index of the guide.