Results 271 to 280 of about 16,697 (297)
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Liquid crystal waveguide devices
2011 7th International Workshop on Fibre and Optical Passive Components, 2011In this paper low driving power linear and nonlinear optical waveguide devices using nematic liquid crystals as core are reported. Experiments and simulations show their behavior either as variable optical attenuators or as optical switches with extinction ratio in excess of 40 dB.
D'Alessandro +7 more
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1987
The general theory of transversely magnetised ferrite in rectangular waveguide is given in Chapter 6. In particular, Fig. 6.1 shows the planes where the magnetic field in the rectangular waveguide is circularly polarised in a plane parallel to the broad face of the waveguide.
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The general theory of transversely magnetised ferrite in rectangular waveguide is given in Chapter 6. In particular, Fig. 6.1 shows the planes where the magnetic field in the rectangular waveguide is circularly polarised in a plane parallel to the broad face of the waveguide.
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Waveguide Integrated Plasmonic Devices
Conference on Lasers and Electro-Optics 2010, 2010We theoretically study the properties of the waveguide integrated plasmonic nano-antennas. The device consists of a plasmonic nano-antenna coupled to a slot waveguide. We show that the proposed device can be used to enhance the spontaneous emission rate from an emitter by three orders of magnitude.
Irfan Bulu +5 more
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Commercial glass waveguide devices
SPIE Proceedings, 1994Integrated optics is a generic term used to describe guided wave devices combining several functions on a single substrate. Passive integrated optics, or "planar", refers to a family of devices that requires no external power source to perform their functions.
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1987
This chapter discusses the following circular waveguide devices: longitudinally magnetised rotator; Faraday rotation circulator; isolator and circular polariser; circumferentially magnetised ferrite tube (latching phase changer); variable attenuator; quarter-wave plate; and half-wave plate.
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This chapter discusses the following circular waveguide devices: longitudinally magnetised rotator; Faraday rotation circulator; isolator and circular polariser; circumferentially magnetised ferrite tube (latching phase changer); variable attenuator; quarter-wave plate; and half-wave plate.
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Resonant waveguide device with vertical gratings
Optics Letters, 2007Transmission resonant filters in a waveguide with vertical gratings have been realized in silicon on insulator wafers. Experimental studies of fabricated devices show a broad stopband of approximately 19 nm in the center of which exists a narrow transmission band of approximately 0.5 nm with a quality factor of approximately 3000.
Hyo-Chang, Kim +2 more
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NOEMS devices based on Slot-Waveguides
2007 Conference on Lasers and Electro-Optics (CLEO), 2007We present device applications for Nano-Opto-Electro-Mechanical System (NOEMS) structures based on the evanescent-wave bonding acting on silicon slot-waveguides. Useful all- optical or electrooptical functionalities include: phase modulation, polarization mode dispersion, near-field probing and reconfigurable optical delay.
Vilson R. Almeida, Roberto R. Panepucci
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Dual Antiresonant Reflecting Optical Waveguide Devices
International Journal of High Speed Electronics and Systems, 1997Basic theories to analyze and design dual antiresonant reflecting optical waveguide (ARROW) devices are discussed. These theories include modal analysis for all ARROW devices, coupling efficiency analysis between dual ARROW waveguides, and eigenmode expansion analysis with step discontinuities in the devices.
YANG-TUNG HUANG +4 more
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High-index-contrast waveguides and devices
Applied Optics, 2005We present a theoretical and experimental study of high-index-contrast waveguides and basic (passive) devices built from them. Several new results are reported, but to be more comprehensive we also review some of our previous results. We focus on a ridge waveguide, whose strong lateral confinement gives it unique properties fundamentally different from
Mee-Koy, Chin +3 more
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Optical waveguides and devices
Journal of Vacuum Science and Technology, 1975A variety of practical or potential uses of low-optical-loss waveguides and devices for light modulation, deflection, and switching are reviewed. Emphasis is given to those that most likely will become necessary replacements of the bulk for systems involving signal processing, imaging radar, and optical communications.
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