An investigation of the polarization dependence of a temperature sensor based on an optical microfiber coupler

The dependence on polarization of the performance of a microfiber coupler based temperature sensor is experimentally investigated. The optical microfiber coupler based temperature sensor has a diameter circa 2µm and can sense temperature in the range from 100°C to 1000°C, with an average sensitivity of 18.9pm/°C. It is shown that different polarization states of the input signal have a significant influence on the proposed temperature sensing accuracy, with a estimated peak error of 63°C at 1000°C

Modern innovative technologies of teaching students

The rapid development of innovative technologies has affected all spheres of modern society, including domestic higher education. The transition of universities to the implementation of the Federal state educational standard requires a significant adjustment of the system of training. This has determined the importance of changing the approaches to the educational-methodical and organizational-technical support of the educational process in higher education. New conditions dictate the need to modernize teaching methods and the transition to innovative technologies in education, significantly improving the quality of teaching, developing students ' ability to know a way around non-traditional, non-standard situations, to competently analyze the reality, to make the most favorable decisions, to work with a large flow of information and understand it well, to effectively solve problems. In addition, at the present stage of education development, it is important to search for such techniques and methods of teaching in higher education that would develop students’ general cultural and professional competence, develop critical and creative thinking, stimulate cognitive activity and independence, create conditions for student initiative, free exchange of views, opportunities to establish themselves, interact with both the teacher and each other. The article deals with the use of interactive technologies in higher school, which are associated with leading innovations in teaching methods and which involve the stimulation of cognitive activity and independence of students, contribute to the formation of their communication skills, the development of critical thinking, i.e. have great developmental and educational potential. The proposed methods of interactive learning can be used during lectures and seminars

A Motivational Analysis of Russian Presidents, 1994–2018

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/156202/2/pops12652.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/156202/1/pops12652_am.pd

Chalcogenide microsphere fabricated from fibre taper-drawn using resistive heating

Over the last decade extreme interest for microsphere resonators has increased rapidly due to their very high quality Q factors, the ease with which they can be manufactured and their versatility in terms of materials and dopants for plenty of passive and active devices. Furthermore, microsphere resonators have the potential to add significant functionality to planar lightwave circuits when coupled to waveguides where they can provide wavelength filtering, delay and low-power switching, and laser functions [1].Recently, chalcogenides are rapidly establishing themselves technologically superior materials for emerging application in non-volatile memory and high speed switching [2] and have been considered for a range of other optoelectronic technologies. Chalcogenide glasses offer a wide wealth of active properties, an exceptionally high nonlinearity, photosensitivity, the ability to be doped with active elements including lanthanides and transitional metals and are able to form detectors, lasers and amplifiers and offer semiconductor, optical, acousto-optic, superconducting and opto-mechanical properties. Unlike any other optical material, they have been formed in to a multitude of form: such as optical fibres, thin films, bulk optical components, microsphere resonators, metamaterials and nanoparticles, patterned by CMOS compatible processing at the sub micron scale. To date, most studies on microsphere resonators have utilized silica microspheres fabricated by melting the tip of an optical fibre with the resulting stem attached to the microsphere used as a tool to place the sphere in the required location while characterizing the microsphere. In this paper high quality chalcogenide (As2S3) microspheres with diameters down to 74 µm are directly fabricated from the taper-drawn using a resistive heating process. A reasonable high quality factor greater than 105 near the wavelength of 1550 nm is demonstrated with an efficient coupling using a fibre taper with a diameter of 2 µm

Отсутствует

The description main blocks of the structure of intellectual training system and contextual IDEF3-chart that allows to programmatically implement adaptive management learning and cognitive learning activitiesПредставлено описание основных блоков структуры интеллектуальной обучающей системы и контекстной IDEF3-диаграммы, позволяющей программно реализовать адаптивное управление учебно-познавательной деятельностью обучающегос

Automated laboratory practical remote access

Рассмотрена разработка автоматизированного лабораторного практикума удаленного доступа, сопряженного с локальной сетью, позволяющего осуществлять демонстрацию физического эксперимента в процессе проведения лекционных занятий в режиме реального времени на оборудовании, территориально удаленном от лекционной аудитории.We had considered the creation of an automated laboratory practical work with remote access, linked with a local network, one that permitted the demonstration of physical experiments during the lectures in real time using the equipment geographically remote from the lecture hall

THE IMPLEMENTATION OF THE TEACHER OF TECHNOLOGY RESEARCH METHOD OF TEACHING IN TODAY'S INFORMATION ENVIRONMENT

В статье показана возможность реализации учителем технологии исследовательского метода обучения в условиях современной информационной средыThe article shows the possibility of implementing the technology of the research method of teaching in the modern information environmen

High-Q bismuth silicate nonlinear glass microsphere resonators

The fabrication and characterization of a bismuth-silicate glass microsphere resonator has been demonstrated. At wavelengths near 1550 nm, high-modes can be efficiently excited in a 179 µm diameter bismuth-silicate glass microsphere via evanescent coupling using a tapered silica fiber with a waist diameter of circa 2 µm. Resonances with Q-factors as high as were observed. The dependence of the spectral response on variations in the input power level was studied in detail to gain an insight into power-dependent thermal resonance shifts. Because of their high nonlinearity and high- factors, bismuth-silicate glass microspheres offer the potential for robustly assembled fully integrated all-optical switching devices

Innovative activity of the teacher of technology in today’s information environment

In the article possibilities of innovative activity of the teacher of technology in the conditions of modern information environment are consideredРассматриваются возможности инновационной деятельности учителя технологии в условиях современной информационной сред