نتایج جستجو برای: optical device

تعداد نتایج: 906228  

2005
W. Van Parys R. Baets

We present the development of a monolithically integratable optical isolator. The device is a semiconductor optical amplifier with magnetized ferromagnetic metal contact. 12.7dB isolation and optical transparency are demonstrated. The spectral dependence is studied. ©2005 Optical Society of America OCIS codes: (230.3240) Isolators; (250.5980) Semiconductor optical amplifiers; (230.3810) Magneto...

2011
Lei Bi Juejun Hu Peng Jiang Dong Hun Kim Gerald F. Dionne Lionel C. Kimerling

Non-reciprocal photonic devices, including optical isolators and circulators, are indispensible components in optical communication systems. However, the integration of such devices on semiconductor platforms has been challenging because of material incompatibilities between semiconductors and magneto-optical materials that necessitate wafer bonding, and because of the large footprint of isolat...

2015
Stevan Lj. Urosevic

The technology of modern purely electrical computers requires more electrical wiring for intra-chip and inter-chip communications as the number of cores increases. Consequently, energy consumption increases due to heat dissipation from low bandwidth electric wires. The conversion of electrical signals to optical signals has been proposed in the future electro-optical computers as a way of addre...

Journal: :Optics letters 2014
Majid Sodagar Amir H Hosseinnia Hesam Moradinejad Amir H Atabaki Ali A Eftekhar Ali Adibi

Optical switches are among the essential building blocks in optical networks due to their unique role in routing data. In this Letter, for the first time to our knowledge, we have exploited a high-quality factor (Q) optical microresonator combined with the well-known irreversible dielectric breakdown phenomenon to introduce a simple field-programmable on/off optical switch. This simple unit can...

2001
VLADIMIR SVIRID SERGEI KHOTIAINTSEV PIETER L. SWART

We present a ray-tracing application in the modeling of an optical detection element employed as a sensor of refractive index of surrounding fluids or gases. The detection element is a solid glass microstructure having a surface of the second order. We exploit the sensitivity of internal reflection of light on the element’s surface to the refractive index of the surrounding medium, operation ne...

2002
L. A. Kolodziejski

Optical systems are being developed to reach the functionality and large-scale integration of electronic systems. Strides are being made to develop an on-chip optical system by designing and fabricating an Optical NanoElectroMechanical, ONEM, device structure based in a gallium arsenide material system. Gallium arsenide, a III-V compound semiconductor, was chosen due to its high-refractive inde...

Journal: :Advanced materials 2010
Thomas Zentgraf Jason Valentine Nicholas Tapia Jensen Li Xiang Zhang

Adv. Mater. 2010, 22, 2561–2564 2010 WILEY-VCH Verlag G T IO N In Roman mythology, the god Janus was depicted with two faces, looking in opposite directions. This led to the phrase ‘‘Janus faced’’ which is mostly used for a ‘‘two-faced’’ or deceitful character of a person. Within integrated photonics a concept like Janus can provide a new class of multi-functional optical meta-elements which co...

2001
F. Bosi S. Burdin V. Cavasinni D. Costanzo T. Del Prete A. Vasiljev

ATLAS is a general purpose experiment approved for the LHC collider at CERN. An important component of the detector is the central hadronic calorimeter; for its construction more than 600,000 Wave Length Shifting (WLS) fibres (corresponding to a total length of 1,120 Km) have been used. We have built and put into operation a dedicated instrument for the measurement of light yield and attenuatio...

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