Researchers have developed light-transmitting hydrogel fibers that are just hundreds of micrometers in diameter. With further ...

Tactile sensors with high softness and multiplexing are highly desirable for applications in humanoid robotics and smart prosthetics. Current tactile sensors face bottlenecks in multi-channel dynamic ...

Abstract: We report a new low-noise compact fiber acoustic sensor that implements a microfabricated silicon diaphragm with a π/2 phase step combined to a single-mode fiber to form a simple ...

Fiber Bragg Grating (FBG) sensors are optical fiber devices in which a periodic modulation of the refractive index is inscribed along the doped silica core of a single-mode fiber. The fiber consists ...

Abstract: The technique of nonreciprocal phase modulation, known from Sagnac-type interferometers, is adopted to interrogate the differential phase shift of the orthogonal light waves in a ...

Scientists have developed a dual-laser Brillouin optical correlation-domain reflectometry (BOCDR) system that uses two frequency-modulated lasers. By scanning the relative modulation phase between the ...

This perspective article delves into the current performance limitations of distributed optical fiber sensors and proposes avenues for future advancements, as envisioned by the author, whose ...

Department of Electrical Engineering and Photonics Research Institute, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong, China Photonics Research Center, The Hong Kong Polytechnic ...