Results 141 to 150 of about 16,245 (165)

Progress in long period fiber gratings

Conference Proceedings. LEOS'98. 11th Annual Meeting. IEEE Lasers and Electro-Optics Society 1998 Annual Meeting (Cat. No.98CH36243), 2002
Summary form only given. Long period fiber gratings have been used in a variety of applications such as gain equalization filters for optical amplifiers, band rejection filters and sensors for temperature and strain. Among these applications, gain equalization is the most demanding and interesting because of the impact of broadband gain-flattened EDFA ...
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Magnetic-force-induced long-period fiber gratings

Optics Letters, 2012
A novel formation method of a long-period fiber grating (LPFG) based on a magnetic-force-induced microbend is proposed and experimentally demonstrated. The LPFG employs a permanent magnet that exerts transversal force to the fiber by attracting a steel coil spring.
Hajime, Sakata, Kosuke, Yamahata
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Tunable mechanically induced long-period fiber gratings

Optics Letters, 2000
We report the experimental characterization of mechanically induced long-period fiber gratings (LPFG's) made by pressing a plate with periodic grooves against a short length of fiber. This filter, which is simple and inexpensive, exhibits transmission spectra and temperature stability similar to those of photoinduced LPFG's.
S, Savin, M J, Digonnet, G S, Kino, H J, Shaw   +3 more
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Long-period fiber gratings as ultrafast optical differentiators

Optics Letters, 2005
It is demonstrated that a single, uniform long-period fiber grating (LPFG) working in the linear regime inherently behaves as an ultrafast optical temporal differentiator. Specifically, we show that the output temporal waveform in the core mode of a LPFG providing full energy coupling into the cladding mode is proportional to the first derivative of ...
Mykola, Kulishov, José, Azaña
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Numerical simulation of long-period grating sensors (LPGS) transmission spectrum behavior under strain and temperature effects

Sensor Review, 2021
Ahmed Nabih Zaki Rashed
exaly  

Curvature sensor based on D-shape fiber long period fiber grating inscribed and polished by CO2 laser

Measurement: Journal of the International Measurement Confederation, 2023
Xiaoli Wang, Liqin Cui, Xiao Deng
exaly  

Highly sensitive coated long period grating sensor for CO2 detection at atmospheric pressure

Sensors and Actuators B: Chemical, 2014
Luis Melo, David Risk, Peter Wild
exaly  

Cavity ring-down long period grating pressure sensor

Sensors and Actuators A: Physical, 2010
N Ni, Chi Chiu Chan, Liyang Shao
exaly  

Modal dispersion effects on the spectra of helical long-period fibre grating-based components

Optics Communications, 2020
Hua Zhao, Hongpu Li
exaly  

Design of a phase-shifted long-period grating using the partial-etching technique

Microwave and Optical Technology Letters, 2005
Shizhuo Yin
exaly