Results 211 to 220 of about 256,622 (263)
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Wavelength calibration methods in laser wavelength measurement
Applied Optics, 2021At present, accurate wavelength calibration plays an important role in laser spectrum measurements. Although the wavelength calibration methods have been investigated for a long time, there are no techniques that are particularly designed for laser spectral calibration to the best of our knowledge.
Liang, Yuan, Lirong, Qiu
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IEEE INFOCOM 2003. Twenty-second Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE Cat. No.03CH37428), 2004
Distributed wavelength provisioning is becoming one of the most important technologies for supporting the next-generation wavelength-routed networks. In this paper we analyze the behavior of wavelength-routed networks with partial wavelength conversion capabilities (i.e., where wavelength conversion is available at only a subset of network nodes) when ...
K. Liu, G. Xiao, Chlamtac, Imrich
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Distributed wavelength provisioning is becoming one of the most important technologies for supporting the next-generation wavelength-routed networks. In this paper we analyze the behavior of wavelength-routed networks with partial wavelength conversion capabilities (i.e., where wavelength conversion is available at only a subset of network nodes) when ...
K. Liu, G. Xiao, Chlamtac, Imrich
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Logarithmic wavelength demultiplexers
Journal of Lightwave Technology, 2003A general approach for a full 1 /spl times/ N demultiplexer using a tree of filter stages is proposed. The device architecture is compact, requiring at least N - 1 filter stages, and flexible, as each filter stage can be arbitrarily designed, with the only constraint of the half-band power property.
A. G. CINCOTTI, NERI, Alessandro
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On the effective wavelength in two-wavelength interferometry
Pure and Applied Optics: Journal of the European Optical Society Part A, 1998A discussion on the effective wavelength in two-wavelength interferometry is given. A definition, different from the commonly adopted one, is presented and its validity is discussed. By adopting this new effective wavelength the range over which lengths can be measured using interferometric techniques can be vastly increased, without introducing phase ...
Hedser van Brug, René G Klaver
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Psychoanalytic Psychotherapy, 1993
In this paper I have endeavoured to draw attention to what is meant when we refer to a patient as psychotic. It is argued that it is not enough just to be ordinarily sensitive to our patients; we need to tune into the psychotic wavelength with all its implications for understanding and management. Illustrative case‐histories are presented from everyday
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In this paper I have endeavoured to draw attention to what is meant when we refer to a patient as psychotic. It is argued that it is not enough just to be ordinarily sensitive to our patients; we need to tune into the psychotic wavelength with all its implications for understanding and management. Illustrative case‐histories are presented from everyday
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2001
A single optical fibre is capable of transporting multiple signals, each at its own wavelength. At the fibre entrance, the signals fed by a number of transmitters, each operating at a specific wavelength, are combined by a wavelength multiplexer and launched into the transmission fibre. At the fibre exit, a wavelength demultiplexer routes these signals
Smit, M.K. +3 more
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A single optical fibre is capable of transporting multiple signals, each at its own wavelength. At the fibre entrance, the signals fed by a number of transmitters, each operating at a specific wavelength, are combined by a wavelength multiplexer and launched into the transmission fibre. At the fibre exit, a wavelength demultiplexer routes these signals
Smit, M.K. +3 more
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THE EFFECT OF WAVELENGTH ON STEREOACUITY
American journal of optometry and archives of American Academy of Optometry, 1970ABSTRACT Stereoacuity for small, parafoveal targets as a function of difference in chromatic stimuli was determined successively with narrow band red, green and blue targets. Apparatus was a modified Howard‐Dolman, type needle alignment device with micrometer drive capable of accurate ...
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Wavelength control of multi-wavelength laser
2021The invention pertains to a photonic integrated circuit device (1) comprising a lasing cavity (2) for resonating at a plurality of discrete wavelengths and an optical feedback cavity (3) operably coupled to the lasing cavity via a front surface (5) of the lasing cavity. The optical feedback cavity comprises a reflective element (4) for reflecting light,
Pawlus, Robert +3 more
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Early Years Educator, 2019
National Radio Day is celebrated in the US on 20 August 2019 and is not only a day to remember the invention of the radio but also to think about words and sound as a medium of communication.
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National Radio Day is celebrated in the US on 20 August 2019 and is not only a day to remember the invention of the radio but also to think about words and sound as a medium of communication.
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Proceedings of INFOCOM '94 Conference on Computer Communications, 2002
The authors present a heuristic algorithm for effectively assigning a limited number of wavelengths among the access stations of a multihop network wherein the physical medium consists of optical fiber segments which interconnect wavelength-selective optical switches.
Zhensheng Zhang, Anthony S. Acampora
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The authors present a heuristic algorithm for effectively assigning a limited number of wavelengths among the access stations of a multihop network wherein the physical medium consists of optical fiber segments which interconnect wavelength-selective optical switches.
Zhensheng Zhang, Anthony S. Acampora
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