A5103198337- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Optical Network Technologies
- Advanced Fiber Laser Technologies
- Mechanical and Optical Resonators
- Optical Polarization and Ellipsometry
- Advanced Sensor and Control Systems
- Plasmonic and Surface Plasmon Research
- Semiconductor Lasers and Optical Devices
- Gas Sensing Nanomaterials and Sensors
- Advanced Surface Polishing Techniques
- Photonic Crystal and Fiber Optics
- Optical Coherence Tomography Applications
- Advanced Chemical Sensor Technologies
- Vibration and Dynamic Analysis
- Metamaterials and Metasurfaces Applications
- Analytical Chemistry and Sensors
- Advanced Optical Sensing Technologies
- Advancements in Photolithography Techniques
- Advanced Antenna and Metasurface Technologies
- Advanced X-ray Imaging Techniques
- Optical and Acousto-Optic Technologies
Wuhan University of Technology
2015-2025
Institute of High Energy Physics
2019
Harbin Engineering University
2009-2015
The polarization characteristics of the multifunctional integrated optic chip (MFIOC) are fully evaluated with high accuracy by using optical coherence domain polarimetry based on white light interferometer. Two maintaining (PM) fibers, serving as extended spliced to PM pigtails MFIOC axes aligned. By launching at 45° birefringence lead-in fiber, beams along fast and slow birefringent waveguides interfere after a analyzer an path correlator. extinction ratio (PER) LiNbO3 Y-waveguide,...
An in-line interferometer based on tapered multicore embedded into a flexible thermo-optical material is proposed and investigated, theoretically experimentally. The device consists of fiber spliced between two single-mode fibers covered with PDMS, high thermo-optic coefficient. temperature sensitivity improvement obtained from PDMS applied (TMCF) has been fundamentally experimentally verified. experimental results show the can be improved by reducing waist diameter TMCF. sensor exhibits...
This paper presents a method to improve the dynamic range of white light interferometer (WLI) based polarization mode coupling (PMC) measurement system beyond 100 dB. The limitation interference beat noise is overcame by analyzing in detail inherent noises that have impacts on detection sensitivity. An improved PMC and are proposed for testing ultra-high extinction ratio (PER) polarization-related devices. can dramatically through eliminating enhancing tested intensity simultaneously, which...
We propose an optical delay line based on differential structure for improving measurement accuracy and extending scanning length of coherence domain polarimetry (OCDP). The is composed two independent graded refractive index lenses (GRIN) a double-faced mirror. OCDP model with loss coefficient error caused by the GRIN-lens-based discussed. Compared to general single GRIN lens, fluctuation reduced ± 0.1 dB range 0.8 m, which corresponds 80% improvement.
We propose an ultra-simple dual-channel configuration for simultaneously evaluating two branches of a multifunctional integrated optic chip (MFIOC). In the configuration, MFIOC is employed as beam splitter to construct demodulation interferometer together with 2×2 fiber coupler. Interference happens between polarization modes traveling through different channels MFIOC. The cross-couplings each channel are respectively characterized by interference peaks which distribute on opposite sides...
A fiber-optic dipping liquid analyzer (FDLA) is developed for measuring properties such as concentration, refractive index, surface tension, and viscosity. An important feature of the FDLA that a drop introduced on end face fiber probe, can be regarded planar-convex lens. The light transmitting path receiving power are affected by index drop. We present theoretical experimental analysis transmission. mathematical model established based paraxial refraction imaging reflective intensity...
A metasurface is a two-dimensional structure with subwavelength thickness that can be used to control electromagnetic waves. The integration of optical fibers and metasurfaces has received much attention in recent years. This integrated device high flexibility versatility. We propose an based on fiber-integrated the mid-infrared, which uses hollow core anti-resonant fiber (HC-ARF) confine light transmission air core. bilayer at end face achieve transmissive modulation field emitted from...
Pressure sensitivity and gas desorption time are two key parameters that determine the performance of pressure sensors. Polydimethylsiloxane (PDMS) film shows potential in highly sensitive sensor, however trade-off between high low presents a challenge. This article proposes novel sensor with ultra-high ultra-fast based on tapered fiber coated Polydimethylsiloxane/Metal Organic Framework (PDMS/MOF) composite film. By doping specific MOF amino groups into PDMS, adsorption capacity can be...
We propose a calibration scheme of the white light interferometer based optical coherence domain polarimetry (OCDP), which could be used to measure ultra-weak polarization mode crosstalk (PMC) or ultra-high extinction ratio (PER) different devices. The depends on first and second order PMC effect devices in series. PMCs between 0 -90dB, established by five pieces maintaining fiber (PMF) Y-waveguide, is prove its feasibility.
Both the Advanced Photon Source (APS) at Argonne National Laboratory (ANL) and Beijing Synchrotron Radiation Facility (BSRF) Institute of High Energy Physics (IHEP) have a keen interest in development compact Multilayer Laue Lens (MLL) test bed for hard x-ray nanofocusing. Recently, collaboration between ANL IHEP, as part Strategic Partnership Project (SPP) 85J05, has produced designs precision flexure stages MLL nanofocusing using commercial flexural pivots developed laminar nanopositioning...
A newPolarization Beam Splitter (PBS) is proposed by introducing an outer substrate, different from the sophisticated design on structures themselves. The PBS fabricated tapering a multicore fiber (MCF) and assembling with PDMS easy handling high feasibility. periodic oscillation transmission demonstrates interference between center- side-core modes phase difference of π/2. polarization dependence spectra observed. intensity distribution can be modulated either in center-core or side-cores...
A highly sensitive fiber temperature sensor based on Vernier-like effect and composite Fabry-Perot interferometers (FPIs) constructed with photopolymer probe is proposed. The FPIs consists of two probes form the interference cavities air, in which sides air cavity are photopolymer. Therefore, both to their free spectral ranges (FSR) close enough meet conditions effect. sensitivity measured as high -90nm/℃, 30 times FPI a single probe. In addition, preparation process, directly attached end...
Drawing-tower grating (DTG) array is a popular choice for temperature sensing due to their networking capabilities and convenience. However, DTG exhibits poor stability in high-temperature environment. As result, the current usage of sensors typically limited below 200 °C. In this study, we investigated medium-temperature range 400 °C–600 °C from perspective engineering practicability. Experimental results indicated that with post-hydrogen loading could exist at 450 long time. After hydrogen...
A novel polarization beam splitter based on MCF with PDMS substrate is demonstrated. The periodic transmission for polarized light and the ER modulation are achieved both in center core or side cores.