Patent
Plastic optical fiber and its production
TLDR
In this article, a dye was added to the core of a plastic optical fiber formed by coating a plastic having excellent light perriousness with a plastic clad having the refractive index lower than the core.Abstract:
PURPOSE:To enable laser oscillation with high efficiency in a continuous wavelength from visible to near IR light a continuous wavelength region from visible to near IR light by incorporating a dye into the core of a plastic optical fiber formed by coating a plastic having excellent light perriousness with a plastic clad having the refractive index lower than the refractive index of the core. CONSTITUTION:The plastic core 11 consisting of a material having excellent light perriousness, for example, polymethyl methacrylate (PMMA) is added with the dye for oscillating a laser at an arbitrary wavelength and the diameter thereof is, for example, 3.5mum. The plastic clad 12 formed to coat the core 11 is of the material having the refractive index smaller than the refractive index (1.496) of PMMA which is the material of the cores 1, for example, a PMMA-PFMA (1%) copolymer obtd. by copolymerizing a small amt. of polyfluoroalkyl methacrylate (PMFA) with PMMA and has the refractive index (1.493) slightly smaller than the refractive index of PMMA. The laser oscillation with high efficiency in the continuous wavelength region from visible to near IR light is thereby enabled.read more
Citations
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Patent
Optical device and method of producing the device
TL;DR: In this paper, a method for producing a waveguide for an nonlinear optical device is described, which is composed of a polymer having the second order non-linear optical dye moieties substituted for the side chains of the polymer, each end of the optical dye being grafted to the polymer.
Patent
Modular, high-energy, widely wavelength tunable and ultrafast fiber light source
Martin E. Fermann,マーチン・イー・ファーマン,Almantas Galvanauskas,アルマンテス・ガルバナスカス,Donald J. Harter,ドナルド ジェー ハーター +5 more
TL;DR: In this paper, a modular, compact and widely wavelength tunable laser system of efficiently generating high-peak ultrashort pulses was proposed, where the peak power handling capability of the fiber amplifiers was expanded by using optimized pulse shapes, as well as dispersively broadened pulses.
Patent
Optical device and method of production thereof
TL;DR: In this article, an organic non-linear optical material, having polymer side chains terminally substituted with secondary nonlinear optical dye molecules, is passed through a pair of press rollers (2a and 2a) and a pairof stretch rollers(4a and 4b) in order to produce a polymer film (3) having oriented dye molecules.
Patent
Plastic optical fiber and plastic optical fiber laser device, and method for manufacture thereof
TL;DR: A plastic optical fiber is a core part comprising a polymer material and, doped therein, an optoactive medium, wherein the polymer material is a copolymer of a first monomer material having no hydroxyl groups as discussed by the authors.
Patent
Method for producing tubular laser light source, tubular laser light source, and detector using same tubular laser light source
Nagai Yusuke,Kajikawa Kotaro +1 more
TL;DR: In this article, a tube preparation step of preparing a resin tube constituted from a light-transmitting resin material and into which a solution containing a fine substance can be impregnated into the tube wall, and an impregnation step of immersing the resin tube into the solution to impregnate the oscillation material into a tube wall of the resins tube.
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Patent
Laser light amplifier
Tetsuo Izumitani,Suzuki Sadaichi +1 more
TL;DR: In this article, a glass optical fiber with Er and Yb in a core and an exciting light ray was proposed to directly amplify a signal light without applying the amplifying light, where the signal light was applied from a semiconductor laser 1 through a lens 1 to the fiber 7, the excited light of an arc lamp 6 is received to amplify the laser light (amplified light) of 1.5mum of wavelength oscillated from the Er by the exciting action of the Yb and to then output through a microscope 2'.
Patent
Lowwdamping optical fibers of heavyyhydrogenized polymer
Jiyon Notsukusu Biizurei,Richiyaado Betsukaabauaa,Henrii Matsukusu Shiyureinitsu,Furanku Chiyaarusu Uiruson +3 more
Patent
Fiber optical photoamplifier
Buikutaa Sourin Uein,Jiyon Shiyoo Haabaado,Jiei Efu Deigone Mishieru,Ee Baagu Rarufu,Eichi Korunaa Buraian +4 more
TL;DR: In this article, a fiber optic amplifier is disclosed, comprising a monomode waveguide (20) having a core (64) and cladding (66), and a portion (70) of the cladding over a predetermined region is removed and replaced by an active medium (30) capable of absorbing light energy at a first wavelength and emitting light information at a second wavelength.