ELEG 640/440 Homework 3
... A step-index, multimode optical fiber has a core index of refraction of 1.47 and a cladding index of 1.46. The core diameter is 30 μm. If lightwaves are coupled with their ray making an angle of 18.7 degrees with the z axis (direction of propagation) of the fiber, will they be accepted into a guided ...
... A step-index, multimode optical fiber has a core index of refraction of 1.47 and a cladding index of 1.46. The core diameter is 30 μm. If lightwaves are coupled with their ray making an angle of 18.7 degrees with the z axis (direction of propagation) of the fiber, will they be accepted into a guided ...
Nanophotonics Lecture 1 - Groups
... Futuristic silicon chip with monolithically integrated photonic and electronic circuits This hypothetic chip performs all-optical routing of mutliple N optical channels each supporting 10Gbps data stream. N channels are first demultiplexed in WDM photonic circuit, then rearranged and switched in opt ...
... Futuristic silicon chip with monolithically integrated photonic and electronic circuits This hypothetic chip performs all-optical routing of mutliple N optical channels each supporting 10Gbps data stream. N channels are first demultiplexed in WDM photonic circuit, then rearranged and switched in opt ...
Prof. Lan Yang - Microlasers for Nanoscale
... sound wave, traveling along a circular wall, an effect found in the whispering gallery of St. Paul’s Cathedral in London. The basis for resonator sensors is that the physical associations and interactions of nanomaterials on the surface of a high-Q optical WGM resonator alter the trajectory and life ...
... sound wave, traveling along a circular wall, an effect found in the whispering gallery of St. Paul’s Cathedral in London. The basis for resonator sensors is that the physical associations and interactions of nanomaterials on the surface of a high-Q optical WGM resonator alter the trajectory and life ...
Presentation
... of rib do not produce good mode confinement • The loss due to scratches, digs, and chips on the wave guide ends ...
... of rib do not produce good mode confinement • The loss due to scratches, digs, and chips on the wave guide ends ...
High Speed Silicon based optical modulators
... and use carrier depletion in a reverse biased diode structure to electrically manipulate the free carrier density which is in interaction with the propagating light. Although the plasma dispersion effect can directly cause intensity modulation due to the relationship between free carrier densities a ...
... and use carrier depletion in a reverse biased diode structure to electrically manipulate the free carrier density which is in interaction with the propagating light. Although the plasma dispersion effect can directly cause intensity modulation due to the relationship between free carrier densities a ...
My Research about the silicon photonics
... 1. macrochip: interconnecting microchips electrically by stacking them edge to edge on a big silicon wafer, making larger chips on a single wafer of silicon 2. silicon photonics: optical networking by connecting chips via laser beam Usually electric wires connect computers and chips. Even within a c ...
... 1. macrochip: interconnecting microchips electrically by stacking them edge to edge on a big silicon wafer, making larger chips on a single wafer of silicon 2. silicon photonics: optical networking by connecting chips via laser beam Usually electric wires connect computers and chips. Even within a c ...
Silicon photonics
Silicon photonics is the study and application of photonic systems which use silicon as an optical medium. The silicon is usually patterned with sub-micrometre precision, into microphotonic components. These operate in the infrared, most commonly at the 1.55 micrometre wavelength used by most fiber optic telecommunication systems. The silicon typically lies on top of a layer of silica in what (by analogy with a similar construction in microelectronics) is known as silicon on insulator (SOI).Silicon photonic devices can be made using existing semiconductor fabrication techniques, and because silicon is already used as the substrate for most integrated circuits, it is possible to create hybrid devices in which the optical and electronic components are integrated onto a single microchip. Consequently, silicon photonics is being actively researched by many electronics manufacturers including IBM and Intel, as well as by academic research groups such as that of Prof. Michal Lipson, who see it is a means for keeping on track with Moore's Law, by using optical interconnects to provide faster data transfer both between and within microchips.The propagation of light through silicon devices is governed by a range of nonlinear optical phenomena including the Kerr effect, the Raman effect, two photon absorption and interactions between photons and free charge carriers. The presence of nonlinearity is of fundamental importance, as it enables light to interact with light, thus permitting applications such as wavelength conversion and all-optical signal routing, in addition to the passive transmission of light.Silicon waveguides are also of great academic interest, due to their ability to support exotic nonlinear optical phenomena such as soliton propagation.