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Optical fibres
Optical fibres

... The plastic made fibres are obtained from polymers of transparent to light, flexibility and interaction less to light etc,. For example poly methyl metha acrylate (PMMA), polyethylene (PE), polystyrene (PS) are used as core materials. Glass made fibre is also fabricated from flexible glass as core w ...
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... LASCAD - The Laser Engineering Tool When FEA results are used with the ABCD matrix code, the temperature distribution, multiplied by the derivative of refractive index versus temperature dn/dT, is fitted parabolically at right angles to the optical axis. The fit is carried through for each slide b ...
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... LASCAD™ - The Laser Engineering Tool When FEA results are used with the ABCD matrix code, the temperature distribution, multiplied by the derivative of refractive index versus temperature dn/dT, is fitted parabolically at right angles to the optical axis. The fit is carried through for each slide b ...
Holographic fabrication of 3D photonic crystals using silicon based
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... Photonic crystals (PhCs) are dielectric periodic materials with photonic bandgaps where electromagnetic wave propagation is forbidden [1,2]. Studies of photonic crystals have been driven by their potential applications. One-dimensional PhCs such as fiber Bragg gratings can be fabricated easily for a ...
A compact laser head with high-frequency stability for Rb atomic
A compact laser head with high-frequency stability for Rb atomic

Variability in ultraviolet total optical depth during the Southern
Variability in ultraviolet total optical depth during the Southern

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Kerala University Optoelectronics Optical Communication
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IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)

Technical Article
Technical Article

... contaminate SD-OCT images. The swept laser source (Micron Optics, Inc.) featured an average output power of ~2mW, a sweep time of 3.5ms, center wavelength λo=1308nm, and sweep bandwidth ∆λ=87nm (Fig. 1(c)). The detector photocurrents were sampled using a 12bit A/D converter at fs=62 KHz, giving M=21 ...
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3D optical data storage



3D optical data storage is the term given to any form of optical data storage in which information can be recorded and/or read with three-dimensional resolution (as opposed to the two-dimensional resolution afforded, for example, by CD).This innovation has the potential to provide petabyte-level mass storage on DVD-sized discs (120mm). Data recording and readback are achieved by focusing lasers within the medium. However, because of the volumetric nature of the data structure, the laser light must travel through other data points before it reaches the point where reading or recording is desired. Therefore, some kind of nonlinearity is required to ensure that these other data points do not interfere with the addressing of the desired point.No commercial product based on 3D optical data storage has yet arrived on the mass market, although several companies are actively developing the technology and claim that it may become available ""soon"".
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