Results 111 to 120 of about 972 (166)

Novel Approach to Phase-Sensitive Optical Time-Domain Reflectometry Response Analysis with Machine Learning Methods. [PDF]

Sensors (Basel)
Yatseev VA, Butov OV, Pnev AB.
europepmc   +1 more source

A Novel Approach to Raman Distributed Temperature-Sensing System for Short-Range Applications. [PDF]

Sensors (Basel)
Pieracci A, Nanni J, Tartarini G, Lanzoni M.   +3 more
europepmc   +1 more source

A hyperfine-transition-referenced vector spectrum analyzer for visible-light integrated photonics. [PDF]

Nat Commun
Shi B, Zheng MY, Hu Y, Zhao Y, Shang Z, Zhong Z, Chen Z, Luo YH, Long J, Sun W, Ma W, Xie XP, Gao L, Shen C, Wang A, Liang W, Zhang Q, Liu J.   +17 more
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Biomarkers of Inflammation and Longitudinal Evaluation of Lung Function, Physical Activity, and Grip Strength: A Secondary Analysis in the CASCADE Study. [PDF]

Chronic Obstr Pulm Dis
MacDonald DM, MacDonald DM, Samorodnitsky S, Lock EF, Fan V, Chen Z, Nguyen HQ, Wendt CH.   +7 more
europepmc   +1 more source

On-chip real-time detection of optical frequency variations with ultrahigh resolution using the sine-cosine encoder approach. [PDF]

Nat Commun
Yao XS, Yang Y, Ma X, Lin Z, Zhu Y, Ke W, Tan H, Wang X, Cai X.   +8 more
europepmc   +1 more source

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An approach for vibration positioning and recognition in OFDR

Optics Frontiers Online 2020: Distributed Optical Fiber Sensing Technology and Applications, 2021
Optical frequency-domain reflectance (OFDR) has been widely used in vibration measurement due to its unique advantages over optical time-domain reflectometry (OTDR). It should be noted that, however, OFDR requires long measurement time and shows poor sensitivity when applied to measure vibration signal over long distance.
Yiwei Hu, Zujun Qin, Li Jiamin, Yinghua Lu, Jinpeng Li, Wentao Zhang, Xianming Xiong   +6 more
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OFDR with an SSG-DBR laser

SPIE Proceedings, 2004
Recently, frequency-domain (FD) -optical-coherence-tomography (OCT) methods have been investigated extensively as more efficient and sensitive system compared with conventional time-domain (TD) -OCT. Superstructure-grating-distributed-Bragg-reflector (SSG-DBR) lasers are particularly suited for optical-frequency-domain-reflectometry (OFDR ...
Takuji Amano, Hideaki Hiro-Oka, DongHak Choi, Hiroyuki Furukawa, Fumiyoshi Kano, Mitsuo Takeda, Motoi Nakanishi, Kimiya Shimizu, Kohji Obayashi   +8 more
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