公开(公告)号：KR100429912B1

公开(公告)日：2004-05-03

申请号：KR1020020043246

申请日：2002-07-23

Applicant: 한국전자통신연구원

Inventor： 권오기 ,  오광룡 ,  김강호 ,  김종회 ,  김현수 ,  심은덕

IPC: G02B6/02

Abstract: PURPOSE: A ridge type semiconductor optical device integrated optical mode size converter is provided to improve a mode transition characteristic and reduce a dispersion loss by forming a top clad layer with a stepped structure. CONSTITUTION: A bottom clad layer(406) is formed on an upper surface of a semiconductor substrate(404). A passive waveguide layer(408) is formed on an upper surface of the bottom clad layer(406). An intermediate clad layer(410) is formed on an upper surface of the passive waveguide layer(408). An active layer(412) is formed on an upper surface of the intermediate clad layer(410). A top clad layer(414) is formed on an upper surface of the active layer(412). The top clad layer(414) has a stepped structure, which is lowered to a beam output terminal. A ridge(416) is formed at the beam output terminal.

Abstract translation: 目的：提供脊型半导体光学器件集成光学模式尺寸转换器，以通过形成具有阶梯结构的顶部包层来改善模式转换特性并减小色散损失。 构造：底部包层（406）形成在半导体衬底（404）的上表面上。 无源波导层（408）形成在底部包层（406）的上表面上。 中间包层（410）形成在无源波导层（408）的上表面上。 有源层（412）形成在中间包层（410）的上表面上。 顶部包覆层（414）形成在有源层（412）的上表面上。 顶部包层（414）具有阶梯状结构，该阶梯状结构降低到射束输出端。 脊（416）形成在射束输出端。

公开(公告)号：KR1020040034972A

公开(公告)日：2004-04-29

申请号：KR1020020063662

申请日：2002-10-18

Applicant: 한국전자통신연구원

Inventor： 김현수 ,  김종회 ,  심은덕 ,  김강호 ,  권오기 ,  오광룡

IPC: G02F2/02

CPC classification number: G02F2/004 ,  G02F2002/006

Abstract: PURPOSE: An element for processing an optical signal using a saturation absorber and an optical amplifier is provided to connect a saturation absorber and an optical amplifier in serial, and to make transparent output light strength outputted from the saturation absorber bigger than saturation input light strength of the optical amplifier, thereby removing noise and improving output light strength. CONSTITUTION: A passing power of a saturation absorber(100) is more than an absorption power if an incident light more than a transparent input light strength is injected, and the absorption power of the saturation absorber(100) is more than the passing power if an incident light less than the transparent input light strength is injected. An optical amplifier(110) is connected with the saturation absorber(100) in serial, and shows a saturation phenomenon at more than saturation input light strength. A transparent output light strength outputted when the transparent input light strength is inputted to the saturation absorber(100) is more than the saturation input light strength.

Abstract translation: 目的：提供一种使用饱和吸收器和光放大器处理光信号的元件，用于串联连接饱和吸收器和光放大器，并使饱和吸收器输出的透明输出光强度大于饱和吸收器的饱和输入光强度 光放大器，从而消除噪声并提高输出光强度。 构成：如果注入超过透明输入光强度的入射光，饱和吸收器（100）的通过功率大于吸收功率，并且饱和吸收器（100）的吸收功率大于通过功率，如果 注入小于透明输入光强度的入射光。 光放大器（110）与饱和吸收器（100）串联连接，并且在大于饱和输入光强度的情况下显示饱和现象。 当透明输入光强度输入到饱和吸收器（100）时输出的透明输出光强度大于饱和输入光强度。

公开(公告)号：KR1020030049475A

公开(公告)日：2003-06-25

申请号：KR1020010079683

申请日：2001-12-15

Applicant: 한국전자통신연구원

Inventor： 오광룡 ,  이명래 ,  김현수 ,  송정호 ,  김강호

IPC: G02F1/29

CPC classification number: H01S5/141 ,  H01S3/0815 ,  H01S3/1055 ,  H01S3/107 ,  H01S5/143

Abstract: PURPOSE: An optical deflector operating by an electric signal and a wavelength-varying external resonator using the optical deflector are provided to continuously rapidly vary a wavelength with an electric signal. CONSTITUTION: A wavelength-varying external resonator includes a light source(301) emitting beams having multiple wavelengths, a lens(302a) for producing parallel beams from the beams emitted from the light source, and a diffraction grating(304) for diffracting the parallel beams. The external resonator further includes a reflection mirror(305) for reflecting the incident beams and an optical deflector. The optical deflector is placed between the diffraction grating and the reflection mirror and refracts a beam having a specific wavelength among the beams from the diffraction grating according to an electric signal to input the beam having a specific wavelength to the reflection mirror. The beam reflected by the reflection mirror is condensed into the light source.

Abstract translation: 目的：提供使用光学偏转器的由电信号和波长变化的外部谐振器操作的光偏转器，以使用电信号连续快速地改变波长。 构成：波长变化的外部谐振器包括发射具有多个波长的波束的光源（301），用于从光源发射的光束产生平行光束的透镜（302a），以及用于衍射光栅 梁。 外部谐振器还包括用于反射入射光束的反射镜（305）和光学偏转器。 光学偏转器被放置在衍射光栅和反射镜之间，并且根据电信号折射来自衍射光栅的光束中的特定波长的光束，以将具有特定波长的光束输入到反射镜。 由反射镜反射的光束被聚光到光源中。

公开(公告)号：KR1019990001113A

公开(公告)日：1999-01-15

申请号：KR1019970024324

申请日：1997-06-12

Applicant: 한국전자통신연구원

Inventor： 김현수 ,  우동진 ,  권인소 ,  노경식

IPC: G06K9/00

Abstract: 본 발명은 자동 인식 코드의 구조 및 그 사용 방법에 관한 것이다. 현재에는 자동 인식을 위해 바코드 또는 OCR 등이 사용되고 있으나 인식을 위한 전용기기 및 전용 용지의 필요성, 바코드의 낮은 기록 밀도 그리고 사용자의 편리성 등의 면에서 새로운 인식 코드 개발의 필요성이 요구되고 있다. 따라서 본 발명에서는 우편 업무의 효율적인 처리를 위해 호환성이 높고 사용시 제약 조건이 거의 없으며 사용자의 편리성 및 높은 기록 밀도 등의 장점을 유지할 수 있는 인식 코드의 구조 및 그 인식 방법과 인식을 위한 코드 제어기의 구조가 제시된다.