Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Bai-Ou Guan"'
Publikováno v:
IEEE Photonics Technology Letters. 29:719-722
The conventional single-angle tilted fiber Bragg grating (TFBG) can only excite a certain range of cladding modes, limiting it for refractive index (RI) measurement in a wide range. In this letter, we fabricate and demonstrate a multi-angle TFBG, in
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 2, Pp 1-6 (2017)
A gas pressure sensor based on Brillouin scattering in a microscaled fiber is experimentally demonstrated. The microscaled fiber with a diameter of 1.9 μm is drawn from a commercial single-mode fiber. A Brillouin spectrum with multipeak structure is
Publikováno v:
Journal of Lightwave Technology. 33:4151-4155
In this paper, the spatial sensitivity of a dual-polarization fiber grating laser sensor is characterized by measuring the response in terms of beat–frequency change to localized transverse loading at different longitudinal positions. The induced f
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 20:555-562
Dual-polarization fiber grating lasers have been exploited as high-sensitivity photonic sensors for a variety of measurands by monitoring the frequency of the output beat signal. In this paper, we demonstrate that the environmentally induced perturba
Publikováno v:
Sensors; Volume 17; Issue 6; Pages: 1219
In this work, a beat-frequency encoded fiber laser hydrophone is developed for high-resolution acoustic detection by using an elastic corrugated diaphragm. The diaphragm is center-supported by the fiber. Incident acoustic waves deform the diaphragm a
Publikováno v:
2016 15th International Conference on Optical Communications and Networks (ICOCN).
In this paper, we report a curvature sensor based on an LPG written in an air-clad thin-core fiber (AC-TCF). The achieved curvature sensitivity is −0.226 nm/m−1 with a good linearity with R2 value of 0.991. Unlike conventional LPGs, this AC-TCF L
Publikováno v:
2016 15th International Conference on Optical Communications and Networks (ICOCN).
We report with cladding-carved DBR fiber lasers the responses of beat frequency on external refractive index (RI). Those carves are fabricated by the CO 2 laser milling technique. The device performance with different carve widths and depths are fabr
Publikováno v:
Optics express. 24(17)
Optical coherence tomography (OCT) is an attractive modality in biomedical imaging systems due to its non-invasive imaging character. Since the image quality of OCT may be limited by the decrease of transverse resolution away from the focus spot, wor
Publikováno v:
Optical Fiber Technology. 19:793-801
Microfiber Bragg gratings (mFBGs) are of great promise due to their compactness, large evanescent field effect, low stiffness, and good flexibility. A lot of researches related to the fabrication and the potential applications of mFBGs in sensing and
Publikováno v:
Optics express. 24(8)
We demonstrate a single taper-based all-solid photonic bandgap (AS-PBG) fiber modal interferometer that consists of a central tapered fiber region connected to the untapered via two abrupt transitions. Modal interference is given by superimposing the