-
1.发明公开
公开(公告)号：EP1801644A4
公开(公告)日：2009-07-01
申请号：EP05793453
申请日：2005-10-11
发明人： YAMAGUCHI SHOICHIRO , IWATA YUICHI , SUZUKI KENGO
IPC分类号： G02F1/37
CPC分类号： G02F1/3558
摘要： When polarization reversal parts are fabricated by a voltage application method, the variation in width of the polarization reversal parts is suppressed by reducing damage in the vicinity of the forward end of a comb electrode. A polarization reversal structure is fabricated by a voltage application method using a comb electrode having a plurality of electrode parts and power supply parts provided on one surface of a ferroelectric single crystal substrate divided into unit regions. The electrode parts (5) correspond to respective polarization reversal parts of the polarization reversal structure. Each electrode part (5) comprises a plurality of arrays of low-resistance pieces (12a-12e, 13a-13e, 14a-14e, 15a-15e, 16a-16e) arranged toward a direction F perpendicular to the longitudinal direction E of the electrode part (5) and spaced apart from each other.
-
公开(公告)号：EP3007289A4
公开(公告)日：2017-03-15
申请号：EP14807858
申请日：2014-06-04
申请人： NGK INSULATORS LTD
CPC分类号： H01S5/125 , G02B6/124 , H01S5/02252 , H01S5/0287 , H01S5/1039 , H01S5/141
-
3.发明公开GRATING ELEMENT AND EXTERNAL-RESONATOR-TYPE LIGHT EMITTING DEVICE 审中-公开GITTERELEMENT ANDD LICHTEMITTIERENDE VORRICHTUNG VOM TYP EINES EXTERNEN RESONATORS
公开(公告)号：EP3076501A4
公开(公告)日：2017-07-12
申请号：EP14865392
申请日：2014-11-18
申请人： NGK INSULATORS LTD
CPC分类号： H01S5/141 , G02B5/1814 , G02B6/124 , H01S5/02415 , H01S5/0287 , H01S5/0654 , H01S5/14 , H01S5/146 , H01S5/22 , H01S2301/163
摘要： A grating device includes a support substrate, an optical material layer 11 disposed on the support substrate and having a thickness of 0.5 µm or more and 3.0 µm or less, a ridge optical waveguide formed by a pair of ridge grooves in the optical material layer and having a light-receiving surface for receiving a semiconductor laser light and a light-emitting surface for emitting light having a desired wavelength, a Bragg grating 12 comprising convexes and concaves formed in the ridge optical waveguide, and a propagating portion 13 disposed between the light-receiving surface and the Bragg grating. The relationships represented by the following Formulas (1) to (4) are satisfied: 0.8 nm ‰¤”»G‰¤ 6.0 nm ··· (1); 10 µm ‰¤Lb ‰¤ 300 µm ··· (2); 20 nm ‰¤ td ‰¤ 250 nm ··· (3); and nb ‰¥ 1.8 ··· (4).
摘要翻译： 一种光栅装置，其特征在于，具备：支承基板;设置在该支承基板上且厚度为0.5μm以上且3.0μm以下的光学材料层11;由该光学材料层中的一对脊形槽形成的脊形光波导路; 其具有用于接收半导体激光的光接收表面和用于发射具有期望波长的光的光发射表面，布拉格光栅12包括形成在脊光波导中的凸起和凹陷以及传播部分13， - 接收表面和布拉格光栅。 （1）〜（4）表示的关系满足：0.8nm≤G≤6.0nm...（1）... 10μm？Lb？300μm...（2）; （3）;（2） 和nb‰1.8 ...（4）。
-
4.发明公开EXTERNAL-RESONATOR-TYPE LIGHT EMITTING DEVICE 审中-公开LICHTEMITTIERENDE VORRICHTUNG MIT EXTERNEM RESONATOR
公开(公告)号：EP3076500A4
公开(公告)日：2017-07-12
申请号：EP14865296
申请日：2014-11-17
申请人： NGK INSULATORS LTD
CPC分类号： H01S5/141 , G02B6/124 , H01S5/02252 , H01S5/0287 , H01S5/1039 , H01S5/2202 , H01S2301/163
摘要： An external resonator type light emitting system includes a light source oscillating a semiconductor laser light by itself and a grating device providing an external resonator with the light soruce. The system performs osicllation in single mode. The light source includes an active layer oscillaing the semiconductor laser light. The grating device includes an optical waveguide having an incident face to which the semiconductor laser is incident and an emitting face of emitting an emitting light of a desired wavelength, a Bragg grating formed in the optical waveguide, and a propagating portion provided between the incident face and the Bragg grating. Formulas (1) to (5) are satisfied.
摘要翻译： 外部谐振器型发光系统包括自己振荡半导体激光的光源和为外部谐振器提供光能的光栅装置。 系统在单一模式下执行osicllation。 光源包括使半导体激光振荡的有源层。 该光栅装置包括光波导，该光波导具有入射面和半导体激光入射到其上的发射面，布拉格光栅形成在光波导中，并且传播部分设置在入射面之间 和布拉格光栅。 公式（1）至（5）得到满足。
-
公开(公告)号：EP1801625A4
公开(公告)日：2016-11-23
申请号：EP05793262
申请日：2005-10-11
申请人： NGK INSULATORS LTD
CPC分类号： G02F1/3775 , G02B6/122 , G02B2006/1204 , G02B2006/12097 , G02B2006/12152 , G02F1/035 , G02F2201/063
摘要： It is provided a structure capable of reducing the loss of incident light propagating in a three-dimensional optical waveguide in a optical waveguide substrate having a ridge type optical waveguide. An optical waveguide substrate has a ferroelectric layer 3 made of a ferroelectric material, a ridge portion formed on a surface of the layer 3 and protrusions provided in both sides of the ridge portion. A three-dimensional optical waveguide is provided in the ridge portion. Alternatively, the substrate has a ridge portion 15 formed on a surface of the layer 3 and step portions provided in both sides of the ridge portion 15 and lower than the ridge portion 15. Grooves 16 are formed in the outsides of the step portions, respectively, and a three-dimensional optical waveguide is provided in the ridge portion 15.
-
公开(公告)号：EP2738600A4
公开(公告)日：2015-02-25
申请号：EP13806059
申请日：2013-05-22
申请人： NGK INSULATORS LTD
发明人： TANI MINORI , ASAI KEIICHIRO , YAMAGUCHI SHOICHIRO
IPC分类号： G02F1/37
CPC分类号： G02F1/3775 , G02F1/37 , G02F2001/3548
摘要： It is provided a wavelength converting device comprising a periodic domain inversion structure for converting a wavelength of a fundamental wave to generate a harmonic wave. The wavelength conversion device includes a ferroelectric substrate and the periodic domain inversion structure formed in the ferroelectric substrate. A vertical domain inversion boundary of the periodic domain inversion structure is inclined with respect to a normal line of an upper face of the ferroelectric substrate, provided that the ferroelectric substrate is viewed in a cross section parallel with a propagating direction of the fundamental wave and parallel with the normal line of the upper face.
-
7.发明公开PRODUCTION METHOD FOR POLARIZATION INVERSION UNIT AND OPTICAL DEVICE 有权HERSTELLUNGSVERFAHRENFÜREINE POLARISATIONSHREINHEIT UND OPTISCHE EINRICHTUNG
公开(公告)号：EP1657590A4
公开(公告)日：2006-09-20
申请号：EP04748298
申请日：2004-08-05
申请人： NGK INSULATORS LTD
发明人： YAMAGUCHI SHOICHIRO , IWAI MAKOTO , IWATA YUICHI
CPC分类号： G02F1/3558 , G02F1/3775
摘要： A polarization inversion unit produced by providing a comb-shaped electrode (3) on one main surface (2a) of a single-zoned ferroelectric single-crystal substrate (2) and a uniform electrode (4) on the other main surface (2b) side and by applying a voltage between the comb-shaped electrode (3) and the uniform electrode (4). A base substrate having a substrate body (5), a first conductive film (6) provided on one main surface (5a) of the substrate body and a second conductive film (7) provided on the other main surface (5b) is layered on the substrate (2). Whereupon, the uniform electrode (4) and the first conductive film (6) are electrically conducted and a voltage is applied between the comb-shaped electrode (3) and the second conductive film (7) to thereby form a polarization inversion unit on the substrate (2).
摘要翻译： 通过在单分区强电介质单晶衬底（2）的一个主表面（2a）上和在另一个主表面（2b）上的均匀电极（4）上提供梳形电极（3） 并在梳形电极（3）和均匀电极（4）之间施加电压。 具有基板主体（5），设置在基板主体的一个主表面（5a）上的第一导电膜（6）和设置在另一主表面（5b）上的第二导电膜（7）的基础基板层叠 衬底（2）。 于是，均匀电极（4）和第一导电膜（6）导电，并且在梳状电极（3）和第二导电膜（7）之间施加电压，从而在第二导电膜（7）上形成极化反转单元 衬底（2）。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.012 秒)
