A microfiber biconically tapered from a standard optical fiber shows obvious sinusoidal oscillatory transmission spectrum due to the multimode interference, with evident blue-shifted peak wavelength w...
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For strain and temperature measurements, researchers have proposed many optical fiber sensing structures based on different principles, mainly including optical fiber gratings [12–14], optical
This article proposes a sensor based on an optical microfiber coupler (OMC) and a Sagnac ring to achieve large-range and high-sensitivity strain and vibration measurements.
Flexible strain sensors are essential components of wearable smart devices that perceive and respond to strain stimulations. However, the sensitivity and response time of most sensors
In this Article, we report a wireless and suturable fibre strain-sensing system that can be used for the real-time monitoring of physiological strains in orthopaedic biomedical applications.
To evaluate the strain-sensing performance of the proposed fiber-optic device, we conduct a comprehensive analysis of both interference-based and FBG-based spectral intensity responses
In this paper, a modified microfiber-assisted open- cavity (MMA-OC) structure is proposed by introducing two pieces of multimode fiber and a novel sub-millimeter in-line Mach-Zehnder
Flexible textile strain sensors that can be directly integrated into clothing have attracted much attention due to their great potential in wearable
Over recent years, thermoplastic polyurethane (TPU) has been widely used as a substrate material for flexible strain sensors due to its remarkable
A non-adiabatic silica microfiber is proposed for displacement or strain and high temperature sensing for the first time. The spectral response of the microfiber depends on the
In this study, hydrogel-based strain sensors in the form of microfibers comprising tough double-network hydrogels or organogels and multi-walled carbon nanotubes (CNTs) are fabricated
Finally, based on the axial strain principle of the microfiber, we designed a highly sensitive vibration sensor using a DTP microfiber integrated into a rectangular through-hole
The microfiber is fabricated by stretching a section of single mode fiber over a flame. Periodic grooves are carved on the microfiber by the laser as have been observed experimentally.
We demonstrated strain sensing of a microfiber with a microarched transition region, which was fabricated by flame heated tapering. Due to multimode interference of different
An elegant way of achieving an ultracompact optical fiber in-line Mach–Zehnder interferometer is to create an inner air cavity in a section of
Herein, an ultrasensitive flexible optical sensor with fast response time has been built based on a microfiber coupler encapsulated in polydimethylsiloxane.
To develop a robust strain sensor with high sensitivity, a polymer material with a low Young''s modulus (such as polydimethylsiloxane (PDMS) with a Young''s modulus of 7.5 × 10 5 Pa) is combined with a
The development of high-performance strain sensors has attracted significant attention in the field of smart wearable devices. However, stretchable strain sensors usually suffer from a trade
A microfiber biconically tapered from a standard optical fiber shows obvious sinusoidal oscillatory transmission spectrum due to the multimode interference, with evident blue-shifted peak
In this paper, we propose a hybrid fiber optic sensor based on MZI and the AR effect to achieve simultaneous measurement of strain and temperature.
The development of stretchable strain sensors having high linearity and sensitivity, low hysteresis, and fast response to reliably monitor fast human motions is challenging. In this study,
Table 1 compares the performance of fiber-optic axial-strain sensors in terms of sensitivity, linear range and temperature compensation. It is clear that
Herein, this paper presents a novel approach to the preparation of high-performance fiber-based flexible strain sensors, which is achieved by firstly dip coated with DMF and then followed with