Results 91 to 100 of about 797,380 (231)

Parallel Multi‐Target Detection for Quantum LiDAR

Laser &Photonics Reviews, EarlyView.
Parallel multi‐target detection is achieved in quantum LiDAR with a single‐pixel quantum readout. Direction and distance information are extracted together, allowing multiple objects to be distinguished under noisy low‐light conditions and pointing to a new strategy for scan‐free quantum remote sensing.
Junyeop Kim, Dongjin Lee, Woncheol Shin, Yeoulheon Seong, Heedeuk Shin   +4 more
wiley   +1 more source

Dual Measurements of Pressure and Temperature With Fiber Bragg Grating Sensor

Al-Khawarizmi Engineering Journal, 2015
The fiber Bragg grating (FBG) technology has been rapidly applied in the sensing technology field. In this work, uniform FBG was used as pressure sensor based on measuring related Bragg wavelength shift.
Tahreer S. Mansour, Fahad M. Abdulhussein   +1 more
doaj  

Analysis of The Effect Caused by Vibration Due to Fiber Bragg Grating Sensor Wavelength

Jurnal Jaringan Telekomunikasi
It is undeniable that fiber cables that are routed underground using the ducting method are susceptible to interference due to external factors such as vibration, especially if the soil is susceptible to vibration activity such as natural factors ...
Firda Wahyuningtyas, Amalia Eka Rakhmania, Yoyok Heru Prasetyo Isnomo   +2 more
doaj   +1 more source

Optical Gaussian Notch Filter Based on Periodic Microbent Fiber Bragg Grating

IEEE Photonics Journal, 2014
In this paper, we demonstrated an optical notch filter constructed from a periodic microbent fiber Bragg grating attained by using two copper-wire-wound slabs.
M. M. Ali, K. S. Lim, A. Becir, M. H. Lai, H. Ahmad   +4 more
doaj   +1 more source

Visible Octave Frequency Combs in Silicon Nitride Nanophotonic Waveguides Driven by Ti:Sapphire Lasers

Laser &Photonics Reviews, EarlyView.
Chip‐based frequency combs are usually pumped from telecom wavelengths, far from the visible. This work instead pumps close to the visible with a Ti:sapphire laser ‐ the source behind the original optical frequency combs and now becoming chip‐integrable‐ and lets silicon‐nitride waveguides convert it into efficient, octave‐spanning visible‐to‐infrared ...
Abdullah Alabbadi, Ewan Allan, Hanna Ostapenko, Pablo Castro‐Marín, Derryck T. Reid, Pascal Del'Haye   +5 more
wiley   +1 more source

Study on Deformation Measurement in Surrounding Rock Failure Model Test of Deep Roadway

工程科学与技术, 2010
:In order to accurately measure the internal deformation in geo-mechanical model test, Based on surrounding rock failure model test of deep roadway, fiber Bragg grating strain sensors and grating ruler displacement sensors were laid in the model to ...
Liu Dejun, Zhang Qiangyong, Chen Xuguang, Lin Bo, Zhang Ning   +4 more
doaj  

Performance analysis of peak tracking techniques for fiber Bragg grating interrogation systems

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
In this paper, we propose a spectral correlation-based technique for tracking the wavelength shift of a fiber Bragg grating. We compared this approach, by means of a Monte Carlo numerical simulation, to the typical peak tracking techniques applied in ...
Daniele Tosi, Massimo Olivero, Guido Perrone   +2 more
doaj   +1 more source

Side‐DBR Guided Exciton‐Polariton Lasing With Near‐Field Mode Imaging in an InGaN Thin‐Film Ridge Waveguide

Laser &Photonics Reviews, EarlyView.
Room‐temperature lower‐polariton‐like lasing is realized in an InGaN/GaN thin‐film ridge cavity with lateral distributed Bragg reflectors. Near‐field optical microscopy distinguishes the transverse side‐DBR‐confined mode from a longitudinal photon‐like mode, while simulations reproduce their spatial profiles.
Wai Yuen Fu, Yuk Fai Cheung, Hoi Wai Choi   +2 more
wiley   +1 more source

From Planar to 3D Nanophotonic Lenses: Advancing Design, Fabrication, and Applications

Laser &Photonics Reviews, EarlyView.
Three‐dimensional nanophotonic lenses are enabled by an integrated workflow that links design parameterization, full‐wave electromagnetic simulation, computational optimization, and freeform fabrication. This Review summarizes how these tools expand optical design freedom beyond a single patterned plane by enriching the local meta‐atom response and ...
Wei Zhu, Lyudmila V. Goncharova, Eric Johlin   +2 more
wiley   +1 more source

Femtosecond‐Laser‐Inscribed Cladding Fiber Bragg Gratings: Architectures, Design Trade‐Offs and Future Sensing Opportunities

Laser &Photonics Reviews, EarlyView.
Femtosecond‐laser inscription enables precise positioning of fiber Bragg gratings within the cladding, introducing new spatial and modal design freedoms. Auxiliary‐waveguide, near‐core evanescent‐field, and direct cladding‐mode‐excitation architectures provide complementary pathways toward multiparameter, vector, distributed, and environmentally ...
Koustav Dey, Rex E. Gerald, Chen Zhu, Jie Huang   +3 more
wiley   +1 more source