High-resolution and fast-response optical waveguide temperature sensor using asymmetric Mach-Zehnder interferometer structure

Amorphous silicon grating couplers based on random and quadratic variation of the refractive index

“…The vertex of the parabola is set to occur at or near the end of the grating coupler, at 𝑧 𝑚𝑎𝑥 , 20 µm. With known values for ∆𝑛 𝑒𝑓𝑓 (-0.3), ∆z (10.4 µm) and 𝑧 𝑚𝑎𝑥 (20 µm), it is possible to calculate the values of the coefficients 𝑎 and 𝑏, recurring to a system of linear equations (8).…”

“…Photonic devices and circuits find applications in various fields of science, including communications [1], quantum computing [2], neural networks [3], [4] and sensing, including: biosensors [5]- [7], temperature sensors [8] and gas detectors [9]. Amorphous silicon in its hydrogenated form (a-Si:H) and hydrogenated amorphous silicon nitride (a-SiN:H) are suitable materials for photonic components, the former is usually preferred for applications in the near infrared (NIR) [10] and the latter is used in near infrared [11] and visible light [12]- [14].…”

The Simulation and Data Analysis of Temperature Sensor

“…Research and practicum on temperature sensors topic are exciting to be reviewed, as did previous researchers . Previous researchers have successfully developed the application of temperature sensors for daily life in all fields of scientific disciplines including: Micropower CMOS temperature sensor with digital output [1], Photonic Crystal Fiber Temperature Sensor Based on Quantum Dot Nanocoatings [2], Investigating the effect of taper length on sensitivity of the tapered-fiber based temperature sensor [3], How Temperature Sensor Change Affects Warming Trends and Modeling: An Evaluation Across the State of Colorado [4], The sensitivity of distributed temperature sensor system based on Raman scattering under cooling down, loading and magnetic field [5], High-resolution and fast-response optical waveguide temperature sensor using asymmetric Mach-Zehnder interferometer structure [6], Development of wearable temperature sensor based on peltier thermoelectric device to change human body temperature [7], An internal thermal sensor controlling temperature preference in Drosophila [8], A flexible temperature sensor based on reduced graphene oxide for robot skin used in internet of things [9], A high resolution and large range fiber Bragg grating temperature sensor with vortex beams [10], High sensitivity fiber temperature sensor based PDMS film on Mach Zehnder interferometer [11], High sensitivity fiber temperature sensor based PDMS film on Mach Zehnder interferometer 12], Flexible wireless temperature sensors based on Ni microparticle-filled binary polymer composites [13], Sensitive Wearable Temperature Sensor with Seamless Monolithic Integration [14], Microstrip Patch Antenna Temperature Sensor [15], On the influence of infra-red sensor in the accurate estimation of grinding temperatures [16], Cholesteric liquid-crystal laser as an optic fiber-based temperature sensor [17], A 405-nW CMOS temperature sensor based on linear MOS operation [18], Organic temperature sensors based on conductive polymers patterned by a selective-wetting method [19], Temperature sensor based on ge doped microstructured fibers [20], Analysis of Controlling Wireless Temperature Sensor for Monitoring Peat-Land Fire [21], The temperature responsive mechanism of fiber surface plasmon resonance sensor [22], Light Control Using Human Body Temperature Based on Arduino Uno and PIR (Passive Infrared Receiver) Sensor [23], Development of a Wireless Temperature Sensor Usin...…”

High-sensitivity balloon-like thermometric sensor based on bent single-mode fiber

“…Over the past decade, all-optical fiber-based temperature sensor technology has progressed quite remarkably and is now beginning to truly challenge other conventional temperature sensors, as it is based on bulk structures or materials [1]. Amongst the numerous thermometric methods, all-optical fiber-based temperature sensors offer an attractive approach that can allow for non-harmful and ultrasensitive response characterization in the sub-to several millisecond timing range [2][3][4]. Moreover, these sensors are capable of accomplishing distributed, quasi-distributed and multi-point measurements that permit temperature monitoring at various points around the object in question via the insertion of a compact-sized, simple-structured sensor element [1,[5][6][7].…”

“…Pure polymer, conductive polymer and polymercomposited coatings are widely utilized to enhance the temperature-sensing performance in optical-fiber-based sensors. These materials have excellent thermal expansion coefficients (TECs), good thermo-optic coefficients (TOCs) (∼±10 −4 ), good sensitivity, high flexibility, are cost effective, easy to fabricate, show fast response times, are non-toxic and compatible with biological assays [3,20,21].…”