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Laser Wavelength Estimation Method Based on a High-Birefringence Fiber Loop Mirror

Photonic Sensors 2019年第1期9卷 89-96页

作者： Ricardo I.ALVAREZ-TAMAYO Patricia PRIETO-CORTES Manuel DURAN-SANCHEZ Baldemar IBARRA-ESCAMILLA antonio barcelata-pinzon Evgeny A.KUZIN Faculty of Physical-Mathematical Sciences CONACYT-Universidad Autonoma de Nuevo LeonSan Nicolas de los Garza 66451Mexico Faculty of Physical-Mathematical Sciences Universidad Autonoma de Nuevo LednSan Nicolas de los Garza 66451 Mexico Optics department CONA CYT-Instituto Nacional de AstrofisieaOptica y EleetronieaTonantzintla 72480Mexico Optics department Instituto Nacional de AstrofisicaOptica y ElectronicaTonantzintla 72480Mexico Mechatronics division Universidad Tecnologica de PueblaPuebla 72300Mexico

A simple method for the estimation of the wavelength of a fiber laser system is proposed. The method is based on the use of a high-birefringence-fiber loop mirror(HBFLM).The HBFLM exhibits a periodic transmission/reflection spectrum whose spectral characteristics are determined by the length and temperature of the high-birefringence fiber(HBF).Then,by the previous characterization of the HBFLM spectral transmission response,the central wavelength of the generated laser line can be *** using a photodetector,the *** of the laser line is estimated during an HBF temperature scanning by measuring the temperature at which the maximum transmitted power of the HBFLM is *** proposed method is demonstrated in a linear cavity tunable Er/Yb fiber *** method is a reliable and low-cost alternative for laser wavelength determination in short wavelength ranges without the use of specialized and expensive equipment.

关键词： Wavelength meter fiber lasers fiber optical loop mirror high-birefringence fiber

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Antinociceptive and Anti-inflammatory Activities of Methanol Extract of Ormosia coccinea （Aubl,） Jacks in vivo

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Journal of Pharmacy and Pharmacology 2017年第6期5卷 289-298页

作者： Miguel Angel Diaz C. Lorena H. Cruz M. Mahabir P. Gupta Dionisio Olmedo Jose Luis Lopez-Perez Estela Guerrero De Leon Juan antonio Moran-pinzon Direccidn Nacional de Farmacia y Drogas Ministerio de Salud Panama Apartado 06812-0816 Republica de Panama Centro de lnvestigaciones Farmacognosticas de la Flora Panamena (CIFLORPAN) Facultad de Farmacia Universidad de Panama Panama Apartado 0824-00172 Republica de Panama Departamento de Quimica FarmacOutica Facultad de Farmacia Universidad de Salamanca Salamanca Apartado 37007 Spain Departamento de Farmacologla Facultad de Medicina Universidad de Panama Panama Apartado 0824 Panama

The present study was conducted to evaluate the antinociceptive and anti-inflammatory activities of methanol extract of rachis of Ormosia coccinea （Aubl.） Jacks （MEOC） using animal models of nociception and inflammation. The antinociceptive activity of the extract was assessed using acetic acid-induced abdominal writhing, hot-plate, and formalin tests. Oral administration of MEOC （500 mg/kg） produced significant （t7 〈 0.05） antinociceptive effects when tested in mice using acetic acid-induced abdominal writhing test and on the inflammatory phase of the formalin test. It was also demonstrated that MEOC had no significant effect on the response latency time to the heat stimulus in the thermal model of the hot plate test. The anti-inflammatory activity of the extract was assessed using carrageenan, histamine and serotonin induced oedema in rat paw. The oral administration of MEOC showed maximum inhibition （64.29%） at 1 h on carrageenan edema, but it did not modify the edema induced by histamine and serotonin. The present results suggest that MEOC has a peripheral antinoeiceptive and anti-inflammatory action.

关键词： Ormosia coccinea antinociceptive anti-inflammatory fabaceae.

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