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Suppression of stimulated Brillouin scattering in
Suppression of stimulated Brillouin scattering in

Dispersion Trimming in a Reconfigurable Wavelength Selective Switch
Dispersion Trimming in a Reconfigurable Wavelength Selective Switch

... The active element in our wavelength selective switch (see Fig. 1, [6] and [7]) is a 2-D array of LCOS pixels. Light is sent from a fiber array through polarization diversity optics, which physically separate and align orthogonal polarization states to the high efficiency s-polarization state of a d ...
Lab 1
Lab 1

Summary of the Invention. The aim of scanning jet
Summary of the Invention. The aim of scanning jet

Document
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... strands of very pure glass few 10s µm in diameter. They are arranged in bundles called optical cables and used to transmit light signals over long distances. ...
LASER LITHOTRIPSY OF KIDNEY CALCULI WITH A Nd:YAG
LASER LITHOTRIPSY OF KIDNEY CALCULI WITH A Nd:YAG

... In 1985 the Extracorpueral Shock Wave Lithotripsy, ESWL, technique came into use. A shock wave is produced outside the patient, led through the body and focused on the stone. The stone is fragmented into small pieces, which usually disappear the natural way, with the excretion of urea .. ESWL ...
Fig. 10-1: Transmission windows
Fig. 10-1: Transmission windows

... of 2x2 MZI multiplexer • The lengths of adjacent waveguides differ by a constant L • Different wavelengths get multiplexed (multi-inputs one output) or de-multiplexed (one input multi output) • For wavelength routing applications multiinput multi-output routers are available ...
Lasers-An Overview
Lasers-An Overview

... predictability of phase as a function of time when the waves travel along the same path at slightly different times.  Spatial Coherence (Transverse): The phase relationship between waves traveling side by side at the same time but at some distance from one another. ...
jnr1de7.pdf
jnr1de7.pdf

Technologies - E
Technologies - E

... Low losses on the co-propagation direction: 0.2 to 2dB High losses on the counter-propagation direction: 20 to 40dB simple, 40 to 80 dB dual) ...
Plasmonic Airy beams with dynamically controlled trajectories Peng Zhang, Sheng Wang,
Plasmonic Airy beams with dynamically controlled trajectories Peng Zhang, Sheng Wang,

preprint version PDF - Emory Physics Department
preprint version PDF - Emory Physics Department

... (b) 3D image of a foam, 100 µm wide. Images from Doug Wise and Eric R. Weeks. field of view is illuminated at any given moment. As the disk spins, the entire field of view is scanned. The collected light is imaged by a standard video camera rather than a photomultiplier tube, and thus by using diffe ...
Plasmonic Airy beams with dynamically controlled trajectories Peng Zhang, Sheng Wang,
Plasmonic Airy beams with dynamically controlled trajectories Peng Zhang, Sheng Wang,

... ences diffraction and decay during propagation due to the truncation and loss, it maintains its size and intensity much better than the Gaussian beam does, reflecting the nondiffracting nature of the Airy beam. Our experimental results agree well with the numerical simulations. For dynamic control o ...
Get
Get

... region. For an appropriate electro-optic sample this reduction leads to self-lensing and soliton propagation when beam diffraction is exactly compensated for. For slab solitons, i.e., those self-trapped beams that originate from a beam that linearly diffracts in only one transverse dimension 共x兲, fo ...
THE WORLD THROUGH OUR SENSES
THE WORLD THROUGH OUR SENSES

(III) Laser Detection of Wave Motion in Solids
(III) Laser Detection of Wave Motion in Solids

unable_MEMS.pdf
unable_MEMS.pdf

... Opaque network—Optical links connected through a mesh of electrical switches, where the optical signals are detected, converted to electrical, and retransmitted as optical (OEO). Provisioning—Deployment/allocation of bandwidth into an area of the network. Traffic churn—Changing bandwidth demand patt ...
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Concepts for the simulation of volume and surface scattering based

IEEE Trans. Microwave Theory Tech. MTT-45, 1467
IEEE Trans. Microwave Theory Tech. MTT-45, 1467

... The output of each fiber is collimated using a cylindrical lens and illuminates (as shown in Fig. 2) a row of pixels of a 2-D SLM with pixels. Finally, the channelized beam is focused onto a single high-speed photodiode, providing delayed samples, with an the weighted sum of the ...
Raman tailored photonic-crystal-fiber for telecom band photon
Raman tailored photonic-crystal-fiber for telecom band photon

... power injected in the fiber mode. The square spectral shape of the pump pulses offers an improved sensitivity in measuring low nonlinear phase shifts. The lowest nonlinear phase shift observed at 400 W (see the pedestals on the spectra) is about 4 mrad. A nonlinear phase shift of ΦNL = 10mrad is obt ...
Photodetecting Fiber Webs—Y. Fink, J. Joannopoulos
Photodetecting Fiber Webs—Y. Fink, J. Joannopoulos

Mimicking the colourful wing scale structure of the
Mimicking the colourful wing scale structure of the

... The reflectance peak-shift across the concavities is clearly visible. The small arrows indicate the reflectance band edges. The red curve represents the predicted reflectance of the multilayer for normal light incidence. g, right: Light transmitted through crossed polarisers has undergone a polarisa ...
Biology 177: Principles of Modern Microscopy
Biology 177: Principles of Modern Microscopy

the world through our senses
the world through our senses

... Reflection and absorption of sound 1. Sound can be reflected or absorbed by the surface of an object. 2. The sound reflected repeatedly from one surface is known as echo. 3. Surfaces that are smooth, even and hard are good sound reflectors and produce loud echo. For examples, concrete, plank, metal ...
Sep 25
Sep 25

... Often used for LO and signal beam coupling Use of polarization rotation by roof top mirror: • Input beam reflected by grid ...
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Harold Hopkins (physicist)

Harold Horace Hopkins FRS (1918–1994) was a renowned British physicist. His Wave Theory of Aberrations, (published by Oxford University Press 1950), is central to all modern optical design and provides the mathematical analysis which enables the use of computers to create the wealth of high quality lenses available today. In addition to his theoretical work, his many inventions are in daily use throughout the world. These include zoom lenses, coherent fibre-optics and more recently the rod-lens endoscopes which 'opened the door' to modern key-hole surgery. He was the recipient of many of the world's most prestigious awards and was twice nominated for a Nobel Prize. His citation on receiving the Rumford Medal from the Royal Society in 1984 stated: ""In recognition of his many contributions to the theory and design of optical instruments, especially of a wide variety of important new medical instruments which have made a major contribution to clinical diagnosis and surgery.""
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