Low threshold edge emitting polymer distributed feedback laser based on
... effects in the plane of the polymer film. The mode is additionally confined in the plane of the propagation direction via total internal reflection. The refractive index periodicity can either be one or two-dimensional, resulting in single or multiple resonance axes, respectively. Doubly periodic or ...
... effects in the plane of the polymer film. The mode is additionally confined in the plane of the propagation direction via total internal reflection. The refractive index periodicity can either be one or two-dimensional, resulting in single or multiple resonance axes, respectively. Doubly periodic or ...
EFFECT OF TEMPERATURE ON THE REFRACTIVE INDICES AND
... Several techniques for mesurement of the birefringence ∆n were proposed, such as refractometric method [1,2,8,9] or intereference technique [3-6]. To find the spectral dependence of the birefringence we used the interferometric method and to interpret the results we need to use the refractometric me ...
... Several techniques for mesurement of the birefringence ∆n were proposed, such as refractometric method [1,2,8,9] or intereference technique [3-6]. To find the spectral dependence of the birefringence we used the interferometric method and to interpret the results we need to use the refractometric me ...
An optical cloak made of dielectrics LETTERS *
... step towards achieving actual invisibility, has remained elusive. Here, we report the first experimental demonstration of optical cloaking. The optical ‘carpet’ cloak is designed using quasi-conformal mapping to conceal an object that is placed under a curved reflecting surface by imitating the refl ...
... step towards achieving actual invisibility, has remained elusive. Here, we report the first experimental demonstration of optical cloaking. The optical ‘carpet’ cloak is designed using quasi-conformal mapping to conceal an object that is placed under a curved reflecting surface by imitating the refl ...
Chapter 7 Optical lattices and experiment design
... interefernce of two counter-propagating laser beams that have parallel linear polarisation. The 10 µm beam waist used in the simulation highlights diffraction’s influence. ...
... interefernce of two counter-propagating laser beams that have parallel linear polarisation. The 10 µm beam waist used in the simulation highlights diffraction’s influence. ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... Optical fibers are becoming dominant transmission media in long distance transmission, optical fiber transmission is used from a short distance below 1ft up to transoceanic distances in undersea cable. In fact all currently future plans in transoceanic cables are fiber optic based. Advantages of fib ...
... Optical fibers are becoming dominant transmission media in long distance transmission, optical fiber transmission is used from a short distance below 1ft up to transoceanic distances in undersea cable. In fact all currently future plans in transoceanic cables are fiber optic based. Advantages of fib ...
Subwavelength-diameter silica wires for low
... method. First, we use a flame to draw a silica fibre to a micrometre-diameter wire. Second, to obtain a steady temperature distribution in the drawing region while further reducing the wire diameter, we use a tapered sapphire fibre with a tip diameter of about 80 mm to absorb the thermal energy from ...
... method. First, we use a flame to draw a silica fibre to a micrometre-diameter wire. Second, to obtain a steady temperature distribution in the drawing region while further reducing the wire diameter, we use a tapered sapphire fibre with a tip diameter of about 80 mm to absorb the thermal energy from ...
(等倾干涉) — equal thickness interference.
... A thin film with index of refraction n = 1.40 is placed in one arm of a Michelson interferometer, perpendicular to the optical path. If this causes a shift of 7.0 fringes of the pattern produced by light of = 589 nm, what is the film thickness? Solution: The change of optical path difference due ...
... A thin film with index of refraction n = 1.40 is placed in one arm of a Michelson interferometer, perpendicular to the optical path. If this causes a shift of 7.0 fringes of the pattern produced by light of = 589 nm, what is the film thickness? Solution: The change of optical path difference due ...
Unit 1.6 Optical Switching - DIT School of Electronics and
... Purely optical (awaits development of optical logic, memory etc.) ...
... Purely optical (awaits development of optical logic, memory etc.) ...
tuning
... TIA/EIA recommended all manufacturers to place the core center towards the connector key in +/-45degree. That is, even if any enduser use any interconnect components produced by any manufacturers, it could be connected for fiber core to match each other and it will be helped for minimized optical pe ...
... TIA/EIA recommended all manufacturers to place the core center towards the connector key in +/-45degree. That is, even if any enduser use any interconnect components produced by any manufacturers, it could be connected for fiber core to match each other and it will be helped for minimized optical pe ...
development of SPR sensors
... the golden surfaces Dependant on the strong electromagnetic enhancement of the SPW, particularly dependent on surface functionalization The main challenge of the development of the technique* ...
... the golden surfaces Dependant on the strong electromagnetic enhancement of the SPW, particularly dependent on surface functionalization The main challenge of the development of the technique* ...
report - CREATE project
... the excitation pulse duration[6], thus we can expect, that by using pulse of duration of 30 fs instead of 75 fs, centered at the same wavelength, we should obtain 2.5 fold higher signal. However reduced pulse duration is associated with increased bandwidth of the laser, thus dealing with the dispers ...
... the excitation pulse duration[6], thus we can expect, that by using pulse of duration of 30 fs instead of 75 fs, centered at the same wavelength, we should obtain 2.5 fold higher signal. However reduced pulse duration is associated with increased bandwidth of the laser, thus dealing with the dispers ...
ppt 3.7MB - Weizmann Institute of Science
... Two approaches for quantum state manipulation EIT and photon state storage are linear optical techniques Need: techniques for creating & manipulating quantum states of photons or spin waves at a level of single quanta Two approaches: Atomic and photonic state preparation via Raman scattering ( ...
... Two approaches for quantum state manipulation EIT and photon state storage are linear optical techniques Need: techniques for creating & manipulating quantum states of photons or spin waves at a level of single quanta Two approaches: Atomic and photonic state preparation via Raman scattering ( ...
D1619
... In this paper, the work is done on the gain of the Raman amplifier. However, discrete Raman amplifiers have many attractive aspects over rareearth-doped fiber amplifiers such as an ErbiumDoped Fiber Amplifier (EDFA) including arbitrary gain band, better adjustability of gain shape, and better linear ...
... In this paper, the work is done on the gain of the Raman amplifier. However, discrete Raman amplifiers have many attractive aspects over rareearth-doped fiber amplifiers such as an ErbiumDoped Fiber Amplifier (EDFA) including arbitrary gain band, better adjustability of gain shape, and better linear ...
Lasers incorporating 2D photonic bandgap mirrors
... the long wavelength range to minimise transmission loss in 1.3 or 1 . 5 5 optical ...
... the long wavelength range to minimise transmission loss in 1.3 or 1 . 5 5 optical ...
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.