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公开(公告)号:KR1020100041770A
公开(公告)日:2010-04-22
申请号:KR1020107001023
申请日:2008-07-16
Applicant: 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피.
Inventor: 우,웨이 , 패탈,데이비드 , 산토리,챨스 , 비크넬,로버트,엔. , 왕,시-유안 , 윌리암스,알.,스탠리 , 퀴토리아노,나테니얼,제이.
CPC classification number: G02B6/12007 , G02B6/124 , G02F1/0126 , G02F1/3515 , G02F2201/307
Abstract: Optical devices (100) including waveguide grating structures (102) are described. In accordance with one embodiment, an optical device (100) is provided comprising a horizontal waveguide grating structure (102) having at least one waveguiding layer (104) and at least one subwavelength periodic grating layer (106). The optical device (100) further comprises upper and lower cladding layers (108, 110) immediately adjoining respective upper and lower surfaces (209, 205) of the waveguide grating structure and having refractive indices lower than a lowest-index one of the waveguiding layers, incident radiation propagating (IN) through one of the upper and lower cladding layers (108, 110) toward the waveguide grating structure. The waveguide grating structure (102) is configured for peak reflection of the incident radiation at a peak reflection frequency. A cumulative thickness of the waveguiding layers (104) is less than one tenth of a free space wavelength of the incident radiation at the peak reflection frequency divided by an average refractive index of the waveguiding layers.
Abstract translation: 描述了包括波导光栅结构(102)的光学器件(100)。 根据一个实施例,提供了一种光学器件(100),其包括具有至少一个波导层(104)和至少一个亚波长周期光栅层(106)的水平波导光栅结构(102)。 光学器件(100)还包括紧邻波导光栅结构的相应上表面和下表面(209,205)的上和下包层(108,110),其折射率低于波导层中的最低折射率 通过上包层和下包覆层(108,110)中的一个朝向波导光栅结构传播的入射辐射(IN)。 波导光栅结构(102)被配置为以峰值反射频率对入射辐射进行峰值反射。 波导层(104)的累积厚度小于峰值反射频率处入射的辐射的自由空间波长除以波导层的平均折射率的十分之一。
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公开(公告)号:KR100927590B1
公开(公告)日:2009-11-23
申请号:KR1020070043802
申请日:2007-05-04
Applicant: 한국전자통신연구원
CPC classification number: G02B5/26 , G01N21/7743 , G02F2201/307
Abstract: 종래의 바이오 센서에 이용되던 공진 반사광 필터는 그레이팅 층에 접하는 기판과 그 기판의 반대편에 위치하는 시료 사이의 굴절률 차이가 컸기 때문에 공진 스펙트럼의 모양이 비대칭이었을 뿐만 아니라 매우 넓었다. 따라서 신호대 잡음비가 작아 감도에 한계가 있었다. 본 발명의 공진 반사광 필터는 그레이팅 층에 접하는 기판으로서 굴절률이 낮은 물질을 이용함으로써 높은 대칭성과 샤프한 형태를 갖는 공진 스펙트럼을 얻을 수 있다. 이를 통해 감도를 개선할 수 있을 뿐만 아니라 좁은 선폭을 요구하는 광학계에 다양하게 응용될 수 있다.
공진 반사광 필터, 바이오 센서, 굴절률, 회절 격자, 그레이팅Abstract translation: 提供了一种谐振反射式滤波器,其包括衬底和光栅层,其中衬底由具有比形成光栅层的材料的折射率低的折射率的材料形成。 因此,谐振反射滤波器可以形成具有良好对称性和尖锐形状的谐振频谱。 因此,谐振反射式滤波器可以具有改进的灵敏度并且可以应用于需要小线宽的光学系统。
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公开(公告)号:KR1020080009280A
公开(公告)日:2008-01-28
申请号:KR1020077025960
申请日:2006-05-18
Applicant: 홉스, 더글라스 에스.
Inventor: 홉스,더글라스에스.
IPC: G02F1/1335
CPC classification number: G02F1/133533 , B42D25/324 , B42D25/328 , G02B5/1809 , G02B5/201 , G02B5/203 , G02B5/3058 , G02F1/133536 , G02F2001/133538 , G02F2201/307
Abstract: A microstructure-based polarizer is described. The device acts as an electromagnetic wave filter in the optical region of the spectrum, filtering multiple wavelength bands and polarization states. The apparatus comprises a substrate having a surface relief structure containing dielectric bodies with physical dimensions smaller than the wavelength of the filtered electromagnetic waves, such structures repeated in an array covering at least a portion of the surface of the substrate. The disclosed structure is particularly useful as a reflective polarizer in a liquid crystal display, or as polarizing color filter elements at each pixel in a display. Other applications such as polarization encoded security labels, polarized room lighting, and color filter arrays for electronic imaging systems are made practical by the device.
Abstract translation: 描述了一种基于微结构的偏振器。 该器件在光谱的光学区域中充当电磁波滤波器,滤波多个波段和极化状态。 该装置包括具有表面浮雕结构的衬底,该表面浮雕结构包含物理尺寸小于滤波电磁波的波长的电介质体,这种结构以覆盖衬底表面的至少一部分的阵列重复。 所公开的结构在液晶显示器中作为反射型偏振器或显示器中的每个像素处的偏光滤色器元件是特别有用的。 用于电子成像系统的其他应用如偏振编码安全标签,偏振室照明和滤色器阵列被设备实用化。
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公开(公告)号:KR100783363B1
公开(公告)日:2007-12-07
申请号:KR1020060096325
申请日:2006-09-29
Applicant: 한국전자통신연구원
CPC classification number: G02F1/0147 , G02F2201/307
Abstract: A tunable waveguide Bragg grating device is provided to suppress a thermal stress between adjacent channels effectively by forming a trench between the waveguide Bragg grating devices. A Bragg grating device(300) includes a Bragg grating region, a thermal adjusting unit(141) and a temperature adjusting unit. The Bragg grating region is formed on a substrate. The thermal adjusting unit is formed on the Bragg grating region. The temperature adjusting unit is formed under the substrate. The Bragg grating region includes a waveguide core(131), a Bragg grating(132) and a cladding layer(133). The Bragg grating is formed under the waveguide core. The cladding layer encloses the waveguide core.
Abstract translation: 提供了可调波导布拉格光栅装置,通过在波导布拉格光栅装置之间形成沟槽,有效地抑制相邻通道之间的热应力。 布拉格光栅装置(300)包括布拉格光栅区域,热调节单元(141)和温度调节单元。 在基板上形成布拉格光栅区域。 热调节单元形成在布拉格光栅区域上。 温度调节单元形成在基板下方。 布拉格光栅区域包括波导芯(131),布拉格光栅(132)和包层(133)。 布拉格光栅形成在波导芯下。 包层包围波导芯。
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公开(公告)号:KR1020050013165A
公开(公告)日:2005-02-02
申请号:KR1020047021358
申请日:2003-06-27
Applicant: 브라운 유니버시티 리서치 파운데이션
CPC classification number: G02B6/29323 , G02B6/02061 , G02B6/02085 , G02B6/02147 , G02B6/02152 , G02B6/02195 , G02B6/12007 , G02B6/29319 , G02B6/29322 , G02B6/29334 , G02B6/29383 , G02B6/29391 , G02B6/29395 , G02F1/025 , G02F1/065 , G02F2201/307
Abstract: 다양한 파장들에서 몇 가지의 기능을 수행하는 광학 회절격자는 파장 대역 안에 스펙트럼 정보를 보존하는 다양한 방법으로 형성되고, 기능들은 다음과 같은 것들을 포함한다: 방사를 하나의 도파로로부터 다른 것으로 커플링 하는 것, 외부의 제어신호에 응답하여 다른 파장에서 동작하는 제어가능한 회절격자.
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公开(公告)号:KR100318041B1
公开(公告)日:2001-12-24
申请号:KR1019997001123
申请日:1997-08-11
Applicant: 도요타 지도샤(주) , 각코호진 도요타가쿠엔
IPC: G02F1/01
CPC classification number: G02F1/0115 , G02F1/3558 , G02F2201/30 , G02F2201/307 , G02F2202/07 , G02F2203/055
Abstract: 본발명에있어서는, 유리재료로이루어지는광파이버(10)의내부에코어부(10a)가형성되어있는동시에, 클래드부(10b)에는전극(14a, 14b)이삽입되어있다. 그리고, 이전극에고전압을인가한상태에서, 소정의강약패턴으로자외선을코어부(10a)에조사함으로써, 코어부(10a)에는비선형영역(16a)과통상영역(16b)이번갈아형성되어그레이팅부(16)가형성된다. 그리고, 전극(14a, 14b)을거쳐소정의전계를그레이팅부(16)에인가함으로써, 그레이팅부(16)의특성을전기광학효과에의하여변경할수 있다. 예를들어, 전압인가에의하여브랙파장이변화되기때문에, 이것을파장스위치등의광기능소자로서이용할수 있다.
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公开(公告)号:JP5674790B2
公开(公告)日:2015-02-25
申请号:JP2012528933
申请日:2010-09-10
Inventor: ハムレ・ジョン・ディー. , マーセ・ダニエル・エフ.
IPC: G06T1/00
CPC classification number: G06K9/0004 , G02B6/4214 , G02F1/1326 , G02F1/1334 , G02F1/295 , G02F2201/307 , G02F2203/62 , H01L27/14625 , H01L31/02327
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公开(公告)号:JP2014044424A
公开(公告)日:2014-03-13
申请号:JP2013170918
申请日:2013-08-21
Inventor: MILLER JOHN MICHAEL , WILLS GONZALO
IPC: G02B5/30 , G02F1/13 , G02F1/13363
CPC classification number: G02F1/1335 , G02B5/3083 , G02B5/32 , G02F1/133504 , G02F2201/307
Abstract: PROBLEM TO BE SOLVED: To provide a variable optical retarder, in which the polarization sensitivity is reduced without excessive optical loss or driving voltage loss.SOLUTION: A sub-wavelength grating is placed inside a liquid crystal variable optical retarder to reduce polarization dependence of the optical retardation generated by the variable optical retarder. A small thickness of the sub-wavelength grating, as compared to a conventional waveplate, reduces the driving voltage loss due to the in-cell placement of the sub-wavelength grating.
Abstract translation: 要解决的问题:提供一种可变光学延迟器,其中极化灵敏度降低而没有过多的光损耗或驱动电压损耗。解决方案:将亚波长光栅放置在液晶可变光学延迟器内部以降低 由可变光学延迟器产生的光学延迟。 与常规波片相比,子波长光栅的小厚度减小了由于子波长光栅的单元内放置引起的驱动电压损耗。
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公开(公告)号:JPWO2012046379A1
公开(公告)日:2014-02-24
申请号:JP2012537557
申请日:2011-08-31
Applicant: パナソニック株式会社
CPC classification number: G02B27/01 , B60K35/00 , B60K2350/2052 , B60K2350/352 , G02B5/32 , G02B2027/0118 , G02F1/1334 , G02F1/141 , G02F2201/307
Abstract: 透過型表示装置は、透明表示板(106)と、画像を表す表示光(204)を透明表示板の一部に設定された表示領域(40)に向けて投射する表示部(20)と、透明表示板の表示領域に設けられ、透明表示板の表示領域の表面側で表示光が反射された表面反射光(205)の観察者の視点(107)に届く光量に対する、透明表示板の表面を透過した表示光が透明表示板の裏面で反射された裏面反射光(206)の視点に届く光量の比率を変更することが可能に構成され、光透過率が変更可能に構成された比率変更部(30)と、比率変更部を第1の状態と第2の状態とに所定のデューティ比で交互に切り替える制御部(12)と、を備える。比率変更部は、第1の状態のときには、第2の状態のときに比べて裏面反射光の視点に届く光量を低下させることにより上記比率を低下させ、第2の状態のときには、第1の状態のときに比べて光透過率が高くなる。
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公开(公告)号:JP5371838B2
公开(公告)日:2013-12-18
申请号:JP2010052851
申请日:2010-03-10
Applicant: 株式会社フジクラ
IPC: H01S3/067 , G02F1/35 , G02F1/37 , H01S3/0933
CPC classification number: H01S3/06754 , G02F1/33 , G02F1/3526 , G02F1/37 , G02F2201/04 , G02F2201/307 , H01S3/0078 , H01S3/0092 , H01S3/0675 , H01S3/094076 , H01S3/10015 , H01S3/10046 , H01S3/10069 , H01S3/10092 , H01S3/1022 , H01S3/1068 , H01S3/1301 , H01S3/2375 , H01S3/302
Abstract: A fiber laser device capable of restraining variations of the rise time of output laser light while shortening the rise time of the output laser light is provided. A fiber laser device (100) includes a seed laser light source (10), a pumping light source (20), an amplification optical fiber (30), a control unit (60), and an output instructing unit (65). When an output instruction is input to the control unit (60), the control unit (60) controls the seed laser light source (10) and the pumping light source (20) to be either in a pre-pumped state or in an output state. In the pre-pumped state, the pumping light source (20) outputs, for a predetermined period, pumping light with an intensity determined based on the duration of the period of time from when the output state prior to the input of the output instruction to the control unit (60) comes to an end till when the output instruction is input to the control unit (60). In the output state, to cause the output unit (50) to output laser light, the seed laser light source (10) outputs laser light, and the pumping light source (20) outputs pumping light.
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