Zhishen Zhang
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View article: Highly Sensitive Strain Sensor Based on Microfiber Coupler for Wearable Photonics Healthcare
Highly Sensitive Strain Sensor Based on Microfiber Coupler for Wearable Photonics Healthcare Open
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 require further improvement to detect subtle strains re…
View article: Highly sensitive strain sensor based on microfiber coupler for wearable photonics healthcare
Highly sensitive strain sensor based on microfiber coupler for wearable photonics healthcare Open
High sensitivity flexible strain sensors that can perceive and respond to strain stimulation are an essential part of wearable smart devices. Yet, the detection of subtle strains on the human body and external stimulation suffers from low …
View article: SnSe-Coated Microfiber Resonator for All-Optical Modulation
SnSe-Coated Microfiber Resonator for All-Optical Modulation Open
In this study, a tin monoselenide (SnSe)-based all-optical modulator is firstly demonstrated with high tuning efficiency, broad bandwidth, and fast response time. The SnSe nanoplates are deposited in the microfiber knot resonator (MKR) on …
View article: Azimuthally and radially polarized orbital angular momentum modes in valley topological photonic crystal fiber
Azimuthally and radially polarized orbital angular momentum modes in valley topological photonic crystal fiber Open
Artificially tailoring the polarization and phase of light offers new applications in optical communication, optical tweezers, and laser processing. Valley topological physics provides a novel paradigm for controlling electromagnetic waves…
View article: Self‐Powered Stretchable Mechanoluminescent Optical Fiber Strain Sensor
Self‐Powered Stretchable Mechanoluminescent Optical Fiber Strain Sensor Open
Strain sensors that can work sustainably and continuously without any external power supply are highly desirable for future wearable and implantable devices. Herein, a self‐powered stretchable strain sensor based on the integration of mech…
View article: Broadband photonic topological insulator based on triangular-holes array with higher energy filling efficiency
Broadband photonic topological insulator based on triangular-holes array with higher energy filling efficiency Open
Photonic topological insulators (PTIs) bring markedly new opportunities to photonic devices with low dissipation and directional transmission of signal over a wide wavelength range due to the broadband topological protection. However, the …
View article: All-fiber stable orbital angular momentum beam generation and propagation
All-fiber stable orbital angular momentum beam generation and propagation Open
An all-fiber scheme for stable orbital angular momentum (OAM) beam generation and propagation is proposed and demonstrated. This scheme is based on a self-designed and manufactured graded-index few mode fiber (GI-FMF) and compatible mode s…
View article: High spatial resolution distributed fiber strain sensor based on phase-OFDR
High spatial resolution distributed fiber strain sensor based on phase-OFDR Open
A novel method to realize high spatial resolution distributed strain measurement is proposed based on phase demodulation scheme of optical frequency domain reflectometry (OFDR). Strain information can be demodulated directly by analyzing t…
View article: Low-crosstalk orbital angular momentum fiber coupler design
Low-crosstalk orbital angular momentum fiber coupler design Open
A fiber coupler for low-crosstalk orbital angular momentum mode beam splitter is proposed with the structure of two separate and parallel microfibers. By properly setting the center-to-center distance between microfibers, the crosstalk is …
View article: Distributed Fiber Voice Sensor Based on Phase-Sensitive Optical Time-Domain Reflectometry
Distributed Fiber Voice Sensor Based on Phase-Sensitive Optical Time-Domain Reflectometry Open
A fiber-optic phase-sensitive optical time-domain reflectometry ('-OTDR) distributed sensing system has been proposed and demonstrated for human-voice detecting and reproducing applications. The fiber strain induced by the voice is ultra s…
View article: Optical fiber design with orbital angular momentum light purity higher than 999%
Optical fiber design with orbital angular momentum light purity higher than 999% Open
The purity of the synthesized orbital-angular-momentum (OAM) light in the fiber is inversely proportional to channel crosstalk level in the OAM optical fiber communication system. Here the relationship between the fiber structure and the p…