high-contrast optical waveguides
Channel Waveguides in Lithium Niobate and Lithium Tantalate
... Channel waveguides, the basic building blocks of optical circuits used in both active and passive devices of integrated optics, are fabricated by many ...exchange waveguides [6] offer high ...
15
Second harmonic generation in novel optical waveguides
... in waveguides with the use of the Quasi Phase Matching (QPM) technique in order to optimise the ...the optical waveguides with reduced dimensions and a high index contrast between the ...
199
Active and passive coupled-resonator optical waveguides
... index contrast slow light structure. Despite the low index contrast, a high slowing factor is obtained by decoupling the length of the device in the prop- agation direction from the size of the ...
188
Finite element characterisation of plasmonic waveguides in terahertz and optical frequencies
... use high refractive index contrast waveguides, for example, silicon waveg- uides with silica or air ...Silicon waveguides can guide light in a more confined manner than can be achieved using ...
241
Nanoscale waveguiding methods
... the optical-electrical ...the optical mode width to below that of the transmitting wavelength is a bottleneck for ...metallized optical fibers, ...(SOI) high-index-contrast and photonic ...
11
Full-vectorial study of light and sound interactions in low and high index contrast silica waveguides
... and high index contrast silica ...these optical waveguides, specially the stimulated Brillouin scattering, in terms of overlap between the fundamental and higher order shear and longitudinal ...
248
Characterisation of acoustic waves in optical waveguides
... modern optical waveguide structures, exemplified by photonic crystal fibres and sub-wavelength waveguides, such as ...in high-index contrast optical waveguides, the acoustic ...
233
Experimental demonstration of reduced bend losses in low contrast polymer hybrid waveguides
... the optical fiber were crucial for the success of the field and have since led to many applications, in particular in the telecommunication industries ...[1]. Optical signals allow broadband transmission ...
42
Modification of glasses and optical waveguides using high electric fields
... In contrast to Khaled et ...as high as ...nonlinear optical coefficient, whose distribution is required to optimize the overlap with optical ...scanning optical microscopy pre- sented ...
161
Photonic crystal waveguides in chalcogenide glasses
... cross section between 550nm × 300nm and 600nm × 300nm with a length of 6.4mm [13]. A peak pump power of 4.2W was used in the range between 1525nm and 1540nm in order to demonstrate an on/off gain of 2.9dB. This low power ...
168
Integrated full vectorial FEM, FDTD and diffraction integrals in characterising visible light propagation through lossy biological media
... the optical field is transported within one propagation step, from the transverse plane at the longitudinal coordinate z to the transverse plane at z + ...the optical fields at the input and the output ...
163
Analysis of Image Reconstruction Methods Employed in Photoacoustic Tomography using MATLAB with Different RAM Size in Computer
... pure optical imaging methods, comprising two-photon microscopy, confocal microscopy and optical coherence tomography have become highly beneficial, none of these methods can provide insertion above ~1 mm ...
5
Crosstalk between optical waveguides with applications to visual photoreceptors
... Section 3.3. The restriction 6 << 1 is satisfied in most optical communications fibres and visual photoreceptors, and is therefore not greatly restrictive. In fact, even when 6 ~ 0.6, the 6 << 1 ...
292
The production and transmission characteristics of low loss optical fibre waveguides
... CHAPTER 11 SPLICING TOLERANCES IN GRADED-INDEX FIBRES 11,1 Calculation of Splice Loss Pll.l It was shoim in Chapter 9 that tunnelling leaky modes in parabolic-index fibres are all contai[r] ...
158
Second order nonlinear optical phenomena in strained silicon waveguides
... many high performance photonic devices over the last fifteen years ...The high compatibility with the mature complementary metal- oxide semiconductor (CMOS) technology offers, in fact, the advantage of ...
145
Spectral Characteristics of Segmented Optical Waveguides Immersed in a Fluid Medium
... the waveguides cover medium increase notably the sensitivity of periodical ...segmented optical waveguides were studied in ...segmented optical waveguides will be two challenges of the ...
10
Optical Modulator Using Channel Optical Waveguides and Planar Patch-Antennas with Gaps
... device, optical sidebands were observed ...measured optical spectrum under the irradiation of the microwave with the linear polarization parallel to the narrow gap ...no optical sideband was observed ...
5
Integration of complex optical functionality in a production CMOS process
... This work is separated into two distinct phases, divided by the founding of a company, Luxtera, aimed at commercializing the technology. Work prior to Luxtera was performed exclusively in the Nanofabrication Group ...
100
Bioabsorbable polymer optical waveguides for deep tissue photomedicine
... polymer waveguides in vivo, we embedded transparent pieces of PLGA 50:50 pieces (1 5 mm 500 mm) subcutaneously in live ...polymer waveguides varies in a large range and may be optimized for specific ...
7