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    • 2. 发明申请
    • Tunable external cavity laser diode using variable optical deflector
    • 可调谐外腔激光二极管使用可变光学偏转器
    • US20060029119A1
    • 2006-02-09
    • US11029784
    • 2004-12-21
    • Kwang OhOh KwonKang KimJong KimHyun Kim
    • Kwang OhOh KwonKang KimJong KimHyun Kim
    • H01S3/08
    • H01S5/141G02B6/29308G02B6/2931G02B6/29313H01S5/005H01S5/026H01S5/101H01S5/143
    • Provided is a tunable external cavity laser diode using a variable optical deflector wherein the variable optical deflector, in which a refractive index varies according to an electrical signal, is arranged in a triangular shape between a concave diffraction grating and a reflective mirror. Since a resonant frequency is changed using the electrical signal rather than the mechanical movement, the stable operation and continuous high-speed tenability may be enabled. In addition, when the tunable external cavity laser diode according to the present invention is implemented in an InP/InGaAsP/InP slab waveguide, a variable time determined by the carrier lifetime may be reduced to several nanoseconds or less, the miniaturization is enabled, and the manufacturing costs are significantly reduced due to the process simplification. Moreover, when the concave diffraction grating is designed based on a silica (or polymer) based slab waveguide, the fabrication may be performed even by a lithography process having low resolution, thereby enhancing reproducibility and uniformity of the diffraction grating, and accordingly reducing the manufacturing costs.
    • 提供了一种可调谐的外腔激光二极管,其使用可变光学偏转器,其中折射率根据电信号变化的可变光学偏转器在凹面衍射光栅和反射镜之间布置成三角形。 由于使用电信号而不是机械运动来改变谐振频率,因此可以实现稳定的运行和连续的高速可靠性。 此外,当根据本发明的可调谐外腔激光二极管在InP / InGaAsP / InP平板波导中实现时,由载流子寿命确定的可变时间可以减少到几纳秒或更小,可实现小型化,并且 由于过程简化,制造成本显着降低。 此外,当基于基于二氧化硅(或聚合物)的平板波导设计凹面衍射光栅时,即使通过具有低分辨率的光刻工艺也可以进行制造,从而提高衍射光栅的再现性和均匀性,并因此降低制造 费用
    • 4. 发明申请
    • Method of fabricating ridge type waveguide integrated semiconductor optical device
    • 脊型波导集成半导体光器件的制造方法
    • US20060104583A1
    • 2006-05-18
    • US11122998
    • 2005-05-06
    • Jong KimHyun KimKang KimOh KwonEun SimKwang Oh
    • Jong KimHyun KimKang KimOh KwonEun SimKwang Oh
    • G02B6/10
    • G02B6/136G02B6/122G02B2006/12097
    • Provided is a method of fabricating a ridge type waveguide integrated semiconductor optical device. The method includes: separating a substrate into an active waveguide region and a passive waveguide region and selectively epitaxial-growing an active layer and a passive layer in the active waveguide region and the passive waveguide region, respectively, such that the active layer and the passive layer are vertically aligned with each other; sequentially forming a capping layer and an electrode connection layer on the active layer and the passive layer; forming a first insulating layer pattern on a predetermined region of the electrode connection layer disposed in the active waveguide region and simultaneously, forming a second insulating layer pattern on a predetermined region of the electrode connection layer disposed in the passive waveguide region; forming a shallow ridge type active waveguide and a shallow ridge type passive waveguide by performing an etching process using the first and second insulating layer patterns as etch masks until the capping layer is etched to a predetermined depth; and forming a passivation pattern on the entire surface of the shallow ridge type active waveguide and forming a deep ridge type passive waveguide by performing an etching process using the second insulating layer pattern as an etch mask until the substrate is etched to a predetermined depth.
    • 提供了一种制造脊型波导集成半导体光学器件的方法。 该方法包括:将衬底分离成有源波导区域和无源波导区域,并分别在有源波导区域和无源波导区域中选择性地外延生长有源层和无源层,使得有源层和被动 层彼此垂直对准; 在有源层和被动层上依次形成覆盖层和电极连接层; 在设置在有源波导区域中的电极连接层的预定区域上形成第一绝缘层图案,并同时在布置在无源波导区域中的电极连接层的预定区域上形成第二绝缘层图案; 通过使用第一和第二绝缘层图案作为蚀刻掩模进行蚀刻处理,直到将覆盖层蚀刻到预定深度来形成浅脊型有源波导和浅脊型无源波导; 并且在浅脊型有源波导的整个表面上形成钝化图案,并通过使用第二绝缘层图案作为蚀刻掩模进行蚀刻处理形成深脊型无源波导,直到基板被蚀刻到预定深度。
    • 8. 发明申请
    • Text input method and apparatus using bio-signals
    • 使用生物信号的文本输入法和装置
    • US20060125659A1
    • 2006-06-15
    • US11152100
    • 2005-06-15
    • Ki KimHong KimJong KimWookho SonHyun Kim
    • Ki KimHong KimJong KimWookho SonHyun Kim
    • H03K17/94G06F17/00G09B21/00
    • G06F3/015G06F3/0236G06F3/04842
    • A method and apparatus for inputting text, by dividing the letter arrangement on a keyboard by area, providing the divided letter arrangement areas on the screen, and making letters be selected step by step according to the bio-signal of a user, are provided. The text input apparatus using a bio-signal includes: a sensor detecting a bio-signal of a human being; a bio-signal measuring unit analyzing the detected bio-signal and extracting characteristic information; and an instruction generation unit converting the characteristic information into an instruction used to drive an application program, according to a preset mapping relation prepared corresponding to the extracted characteristic information. According to the method and apparatus, communications by users, who cannot practically use conventional interfaces, such as a mouse and a keyboard and therefore, experience difficulties in communicating with others in a computing environment, can be easily performed.
    • 一种用于输入文本的方法和装置,通过按键盘划分字母排列,在屏幕上提供划分的字母排列区域,并根据用户的生物信号逐句选择字母。 使用生物信号的文本输入装置包括:检测人的生物信号的传感器; 生物信号测量单元,分析检测到的生物信号并提取特征信息; 以及指令生成单元,根据对应于所提取的特征信息准备的预设映射关系将特征信息转换为用于驱动应用程序的指令。 根据该方法和装置,可以容易地执行用户实际上不能使用常规界面(诸如鼠标和键盘)并因此在计算环境中与他人通信中遇到困难的通信。