Thermo-Optic
A ridge waveguide for thermo-optic application
... In this work, a ridge waveguide with a metal heater is presented. The fabrication process requires only one lithography process, which is simpler than that for a conventional buried waveguide with a metal heater. The ...
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Design and simulation of low power consumption polymeric based MMI thermo optic switch
... The 2x2 MMI-MZI polymer thermo-optic switch in a high refractive index contrast (0.102) with a new structure design is realized by Al-hetar et al. (2011). A strongly guiding ridge waveguide with deep ...
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2D Photonic crystal thermo optic switch based on AlGaAs/GaAs epitaxial structure
... The device was characterized using TE polarized light from a tunable laser source over the range from 1460 nm to 1580 nm. The device was firstly measured with the heater electrode switched off and light was coupled into ...
5
Optical Signal Processing Through Efficient Electro Optic Modulators in Advanced Optical Communication Networks Under Thermo-optic Effects
... Abstract— Semiconductor optical modulator devices plays an important role in several rapidly developing areas of broadband communications, such as optical networking, metropolitan/access communications and computing ...
14
A New Structure of Mmi Polymer Thermo-Optic Switch with a High Refractive Index Contrast
... based thermo-optic switches published in the literature, given in Table ...efficient thermo- optic operation, so some of the switches in Table 1 have not been optimized for these later ...
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Theoretical and Numerical Study of Stress and Thermo Optic in Photonic Crystal Fiber Laser in Different Pump Schemes
... In this paper, we have investigated a comparison of stress and thermo-optic of photonic crystal fiber (PCFs) in different pump schemes. Using in these calculations a simple model of (PCFs) and finite ...
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Design of fiber-integrated tunable thermo-optic C-band filter based on coated silicon slab
... In this paper, we present a thermo-optic tunable IIR filter based on a coated Si slab for the C-band region. The coated Si slab has significantly improved character- istics over a bare Si such as high ...
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Measurement of Thermo-Optic Properties of Thin Film Dielectric Coatings
... In previous analyses, noise power spectral densities for TE and TR effects had been calculated separately and then added as incoherent noise sources. We argued in [23] that these effects were both driven by the same ...
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Fabrication of Resistive Thermo-Optic Heaters on Silicon Photonic Integrated Circuits
... In this section, the thermo-optic response of a double bus ring resonator circuit (add-drop configuration) is analyzed. As mentioned earlier in this thesis, a ring resonator has a combined working principle ...
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Thermo-optic Coefficient of Electrochemically Etched Porous Silicon
... Thermo-optic coefficient of electrochemically etched porous silicon layer was measured through temperature-dependent reflectance spectroscopy subjected to temperatures ranging from 302.15K to 594.15K. ...
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A Novel Thermo-Optic Analysis to Detect Photochemical Reaction of Salbutamol
... new thermo-optic analysis has been used to detect the photochemical reactions in salbutamol, a drug used as anti ...derived optic parameters of pure medicine and that exposed to solar radiations have ...
6
Nanoscale Silicon Waveguide Based Thermo-Optic Sensor Using a Compact Mach-Zehnder Interferometer
... © 2016 by the authors; licensee Preprints, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution [r] ...
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Quadratic behavior of fiber Bragg grating temperature coefficients
... temperature dependence of the thermo-optic coeffi- cient will also be different at longer wavelengths than for measurements at 633 nm. Thus it is desirable to carry out a direct experimental measurement of ...
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Silicon nanophotonics for scalable quantum coherent feedback networks
... Physically, the effect of the voltage applied to a phase shifter (where Joule heating changes the material refractive index via the thermo-optic effect) does not seem to be localized to th[r] ...
18
Optic Nerve Hyperintensity on T2 Weighted Images among Patients with Pituitary Macroadenoma: Correlation with Visual Impairment
... of optic nerve hyperintensity lesions was corre- lated to the degree of optic chiasm compression and to the presence of diminished VA (P ⬍ ...) optic chiasm compression, the optic nerve was ...
5
Optic Disc Size in Glaucoma Patients Attending a Tertiary Institution in Nigeria
... There has also been contrasting results comparing the relationship between disc size and type of glaucoma. Several studies have been conducted but none has been able to establish a definite relationship [21,22]. ...
6
Clinical features of visual disturbances secondary to isolated sphenoid sinus inflammatory diseases
... of optic nerve and the coexistence of multiple injury mechanisms in- cluding direct nerve infiltration by inflammation and in- fection, compression, and ...
9
Clinical Reasoning: A 10-year-old boy with bilateral vision loss
... Dominant optic atrophy is characterized by bilat- eral vision loss that occurs at a young age, typically before age 10, which progresses slowly to a visual acu- ity between 20/100 and ...
5
Fiber Optic Sensor Development On Liquid Cetirizine Detection For Pharmaceutical Industry
... fiber optic cable is made of glass material fibers, commonly with diameter in the range of 50 to 100 ...fiber optic diameter that is used today is ...fiber optic allows higher bandwidth at high speed ...
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Pop in Crack Propagation Monitoring for AA2024 T3 Ductile Alloy
... isothermal modulus of compressibility of the material. However, when the loading increases to the point of plastic deformation, slippage takes place and the dislocation motion along the slip planes generates a significant ...
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