公开(公告)号：US20060127006A1

公开(公告)日：2006-06-15

申请号：US11166327

申请日：2005-06-24

Applicant: Oh Kee Kwon ,  Kang Ho Kim ,  Jong Hoi Kim ,  Hyun Soo Kim ,  Kwang Ryong Oh

Inventor： Oh Kee Kwon ,  Kang Ho Kim ,  Jong Hoi Kim ,  Hyun Soo Kim ,  Kwang Ryong Oh

IPC: G02B6/34

CPC classification number: G02B6/29395 ,  G02B6/12007 ,  G02B6/12009 ,  G02B6/2931 ,  G02B6/29313 ,  G02B6/2938 ,  H01S3/106 ,  H01S5/02284 ,  H01S5/141 ,  H01S5/4062 ,  H01S5/4087

Abstract: Provided are a tunable demultiplexer and a tunable laser, having an optical deflector in which a refractive index of a core layer of a deflection pattern region having a predetermined shape varies in response to an external electrical signal so that the optical deflector deflects incident light in the radial direction.

Abstract translation: 提供了一种可调谐解复用器和可调谐激光器，其具有光学偏转器，其中具有预定形状的偏转图案区域的芯层的折射率响应于外部电信号而变化，使得光学偏转器偏转入射光 径向。

公开(公告)号：US06856452B2

公开(公告)日：2005-02-15

申请号：US10334937

申请日：2002-12-31

Applicant: Jong Hoi Kim ,  Kwang Ryong Oh ,  Yong Soon Baek ,  Hyun Soo Kim ,  Kang Ho Kim

Inventor： Jong Hoi Kim ,  Kwang Ryong Oh ,  Yong Soon Baek ,  Hyun Soo Kim ,  Kang Ho Kim

IPC: G02B6/125 ,  G02B6/28 ,  G02F1/21 ,  G02F2/00 ,  G02F1/365

CPC classification number: G02F2/004 ,  G02B6/2813 ,  G02F2001/212 ,  G02F2001/217 ,  H01S5/509

Abstract: Filter-free wavelength converters for separating and rejecting an optical input signal. A first input port couples a continuous wave (CW) light. A second input port couples an optical input signal. A multimode interference semiconductor optical amplifier (MMI-SOA) determines the output port with the input port and intensity-modulation of the CW light with the optical input signal. A first output port guides the converted signal, and a second output port guides the optical input signal.

Abstract translation: 用于分离和拒绝光输入信号的无滤波器波长转换器。 第一输入端口连接连续波（CW）光。 第二输入端口耦合光输入信号。 多模干涉半导体光放大器（MMI-SOA）通过输入端口确定输出端口，并用光输入信号确定CW光的强度调制。 第一输出端口引导转换的信号，第二输出端口引导光输入信号。

公开(公告)号：US06810047B2

公开(公告)日：2004-10-26

申请号：US10185100

申请日：2002-06-27

Applicant: Kwang Ryong Oh ,  Myung Lae Lee ,  Hyun Soo Kim ,  Jung Ho Song ,  Kang Ho Kim

Inventor： Kwang Ryong Oh ,  Myung Lae Lee ,  Hyun Soo Kim ,  Jung Ho Song ,  Kang Ho Kim

IPC: H01S310

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

Abstract: The present invention relates to an optical deflector driven by an electrical signal, and a wavelength tunable external resonator using the same. The optical deflector of a triangle shape, capable of controlling the refractive index of a beam depending on the electrical signal, is positioned between a reflection mirror and a diffraction grating in a Littman-Metcalf mode external resonator or between a lens and the diffraction grating in a Littrow mode external resonator. Thus, even with the reflection mirror and the diffracting grating fixed, the refractive index of the beam generated from a laser diode can be controlled by adjusting the electrical signal applied to the optical deflector, so that beam having a specific wavelength can be focused and the wavelength can be rapidly and consecutively tuned.

Abstract translation: 本发明涉及一种由电信号驱动的光偏转器以及使用该光偏转器的波长可调外部谐振器。 能够根据电信号控制光束的折射率的三角形光偏转器位于Littman-Metcalf模式外部谐振器中的反射镜和衍射光栅之间，或者位于透镜与衍射光栅之间 Littrow模式外部谐振器。 因此，即使反射镜和衍射光栅固定，也可以通过调整施加到光偏转器的电信号来控制从激光二极管产生的光束的折射率，使得可以聚焦具有特定波长的光束，并且 波长可以快速和连续调整。

公开(公告)号：US06639735B2

公开(公告)日：2003-10-28

申请号：US09927221

申请日：2001-08-10

Applicant: Kyung-Hyun Park ,  Jong-Hoi Kim ,  Yong-Soon Baek ,  Moon-Ho Park ,  Sung-Bock Kim ,  Kwang-Ryong Oh

Inventor： Kyung-Hyun Park ,  Jong-Hoi Kim ,  Yong-Soon Baek ,  Moon-Ho Park ,  Sung-Bock Kim ,  Kwang-Ryong Oh

IPC: G02B308

CPC classification number: G02B6/1228 ,  G02B6/12004 ,  G02B2006/12176 ,  H01S5/1014 ,  H01S5/1032 ,  H01S5/2081

Abstract: Disclosed is a method for the fabrication of a spot-size converter with a lateral-tapered waveguide (or an active layer), which utilizes a mask during a lithographic process wherein the mask has a pad that can absorb strain to be occurred during forming a lateral-tapered waveguide pattern at its distal end and the lateral-tapered waveguide is fabricated by forming the distal end on the order of about 0.6 &mgr;m in width followed by forming the lateral-tapered waveguide on the order of 0.1 &mgr;m using an wet etching. Thus, it is possible to reduce a fabrication cost because it is free from a high-resolution electron beam lithography and a stepper, and hence enhance a reproducibility of the lateral-tapered waveguide because it is free from an excessive wet etching during the use of a contact exposure equipment. Further, it is possible to integrate the spot-size converter fabricated by the above with an optical device, resulting in an increased position adjustment and reproducibility of the spot-size converter, which in turn, leads to increase in yield for the optical device.

公开(公告)号：US06597838B1

公开(公告)日：2003-07-22

申请号：US09135730

申请日：1998-08-18

Applicant: Chan Yong Park ,  Seung Won Lee ,  Dug Bong Kim ,  Kwang Ryong Oh ,  Hong Man Kim

Inventor： Chan Yong Park ,  Seung Won Lee ,  Dug Bong Kim ,  Kwang Ryong Oh ,  Hong Man Kim

IPC: G02B634

CPC classification number: G02B6/12002 ,  G02B6/12007 ,  G02B2006/12107 ,  G02B2006/12147

Abstract: The present invention relates to an optical filter whose a sidelobe disturbing a characteristic of an optical filter by weighting an optical coupling efficiency between waveguides is controlled upon applying a selective area growth method in a wavelength selective variable semiconductor optical filter and method of fabricating the same. The present invention can control the thickness of growth layer selectively by controlling the width of the dielectric thin film mask whose the growth is not achieved in the selective area growth method, can control the distance between two waveguides of the wavelength selective variable semiconductor optical filter by applying the result on the distance control between two waveguides. Accordingly, there can be changed an optical coupling efficiency between two waveguides spatially. Because the sidelobe characteristics is largely improved if the distance between two waveguides is controlled temporarily to be corresponded to one period of Hamming function, there can be fabricated a semiconductor optical filter whose the characteristic is very excellent when applying the present invention.

Abstract translation: 本发明涉及一种滤光器，其通过在波长选择性可变半导体光学滤波器中应用选择性区域增长方法及其制造方法来控制通过对波导之间的光耦合效率进行加权来干扰滤光器的特性的旁瓣。 本发明可以通过控制在选择区域生长方法中未实现生长的电介质薄膜掩模的宽度来选择性地控制生长层的厚度，可以通过以下方式控制波长选择性可变半导体光学滤波器的两个波导之间的距离 将结果应用于两个波导之间的距离控制。 因此，可以在空间上改变两个波导之间的光耦合效率。 因为如果临时控制两个波导之间的距离以对应于汉明功能的一个周期，则旁瓣特性被大大改善，所以可以制造当应用本发明时其特性非常好的半导体滤光器。

公开(公告)号：US06593162B1

公开(公告)日：2003-07-15

申请号：US10185137

申请日：2002-06-27

Applicant: Kyung Hyun Park ,  Yong Soon Baek ,  Sung Bock Kim ,  Kwang Ryong Oh

Inventor： Kyung Hyun Park ,  Yong Soon Baek ,  Sung Bock Kim ,  Kwang Ryong Oh

IPC: H01L2100

CPC classification number: B82Y20/00 ,  H01S5/1014 ,  H01S5/1032 ,  H01S5/106 ,  H01S5/2081 ,  H01S5/227 ,  H01S5/2275 ,  H01S5/34373

Abstract: The present invention relates to a method of manufacturing a semiconductor optical device. The present invention discloses a method of manufacturing an optical device of a planar buried heterostructure (PBH) type by which an active layer region of a taper shape at both ends is patterned, an undoped InP layer is selectively grown in order to reduce the propagation loss and two waveguides are simultaneously formed by means of a self-aligned method, thus simplifying the process to increase repeatability and yield.

Abstract translation: 本发明涉及半导体光学器件的制造方法。 本发明公开了一种制造平面埋入异质结构（PBH）型的光学器件的方法，通过该方法，在两端形成锥形的有源层区域被图案化，选择性地生长未掺杂的InP层，以便降低传播损耗 并且通过自对准方法同时形成两个波导，从而简化了增加重复性和产率的过程。