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    • 2. 发明授权
    • 좁은 광퍼짐을 갖는 반도체 레이저
    • 좁은광을을갖갖반반반저
    • KR100874896B1
    • 2008-12-19
    • KR1020070001026
    • 2007-01-04
    • 한국과학기술연구원
    • 송진동한일기최원준조운조이정일
    • H01S5/34H01S3/10
    • A semiconductor laser having narrow beam spreading is provided to reduce width of an output beam of the semiconductor laser, to improve optical coupling efficiency between the semiconductor laser and an optical fiber, and to perform a photo-excitation of a bio body without a microscope or a microlens. A semiconductor laser includes a board, a lower cladding layer, a lower quantum well active layer, a core layer, an upper quantum well active layer, and an upper cladding layer. A lower cladding layer(31a) is formed on the board. A lower quantum well active layer(32a) is formed on the lower cladding layer. A core layer(33) is formed on the lower quantum well active layer. An upper quantum well active layer(32b) is formed on the core layer. An upper cladding layer(31b) is formed on the upper quantum well active layer.
    • 提供具有窄波束扩展的半导体激光器以减小半导体激光器的输出光束的宽度,提高半导体激光器和光纤之间的光耦合效率,并且在没有显微镜的情况下执行生物体的光激励,或者 一个微透镜。 半导体激光器包括板,下包层,下量子阱活性层,核心层,上量子阱活性层和上包层。 下包层(31a)形成在板上。 下部量子阱活性层(32a)形成在下部覆盖层上。 芯层(33)形成在下量子阱有源层上。 在核心层上形成上量子阱有源层(32b)。 上部包层(31b)形成在上部量子阱活性层上。
    • 3. 发明授权
    • 넓은 파장의 광을 방출하는 발광소자
    • 广播光谱发光装置
    • KR100819388B1
    • 2008-04-07
    • KR1020070001021
    • 2007-01-04
    • 한국과학기술연구원
    • 송진동최원준한일기조운조이정일
    • H01L33/06H01L33/04H01L33/20
    • A board spectrum light emitting device is provided to obtain lights having a broad spectrum discharged from a quantum dot and a quantum well active layer by allowing the quantum dot in an electric field reinforcing layer to absorb photons generated in the quantum well active layer to generate a second photon. Core layers(33a,33b) enclose a quantum well active layer(34). Cladding layers(31a,31b,31c,31d) include electric field reinforcing layers(32a,32b) whose refractive index is higher than that of the cladding layer. The electric field reinforcing layer includes plural quantum dots(QD). The quantum well active layer discharges light of a first wavelength. The quantum dot discharges light of a second wavelength longer than the first wavelength. A band gap of the quantum dot is smaller than that of the quantum well active layer. The quantum dot in the electric field reinforcing layer absorbs photons generated in the quantum well active layer to generate a second photon.
    • 提供了一种板光谱发光器件,通过允许电场增强层中的量子点吸收在量子阱活性层中产生的光子而获得从量子点和量子阱活性层放出的光谱, 第二光子。 芯层(33a,33b)包围量子阱活性层(34)。 包覆层(31a,31b,31c,31d)包括其折射率高于包层的折射率的电场增强层(32a,32b)。 电场增强层包括多个量子点(QD)。 量子阱有源层放电第一波长的光。 量子点放电比第一波长长的第二波长的光。 量子点的带隙小于量子阱活性层的带隙。 电场增强层中的量子点吸收在量子阱活性层中产生的光子以产生第二光子。
    • 9. 发明公开
    • 비대칭 SCH 구조를 갖는 반도체 레이저 다이오드 및 그제조 방법
    • 具有不对称SCH结构的半导体激光二极管及其制造方法,其中将InGaAs层插入第一N型SCH层
    • KR1020040083753A
    • 2004-10-06
    • KR1020030018348
    • 2003-03-25
    • 한국과학기술연구원
    • 허두창한일기최원준박용주조운조송진동이정일
    • H01S3/0941
    • PURPOSE: A semiconductor laser diode having an asymmetric SCH(Separate-Confinement Hetero) structure and a fabricating method thereof are provided to improve a thermal characteristic and an optical characteristic by reducing internal loss due to inserting a p-InP layer. CONSTITUTION: An n-type cladding layer(220) is formed on a substrate. An n-type second SCH layer(218) is formed on the n-type cladding layer. The first n-type SCH layer(210) is formed on the second SCH layer. An active layer(212) is formed on the first n-type SCH layer. The first p-type SCH layer(208) is formed on the active layer. The first insertion layer(206) is formed on the p-type first SCH layer. A p-type second SCH layer(204) is formed on the first insertion layer. A p-type cladding layer(202) is formed on the p-type second SCH layer.
    • 目的:提供具有不对称SCH(分离限制异质)结构的半导体激光二极管及其制造方法,通过减少由于插入p-InP层引起的内部损耗来改善热特性和光学特性。 构成:在基板上形成n型包覆层(220)。 在n型包覆层上形成n型第二SCH层(218)。 第一n型SCH层(210)形成在第二SCH层上。 在第一n型SCH层上形成有源层(212)。 第一p型SCH层(208)形成在有源层上。 第一插入层(206)形成在p型第一SCH层上。 在第一插入层上形成p型第二SCH层(204)。 p型覆层(202)形成在p型第二SCH层上。