公开(公告)号：KR100943847B1

公开(公告)日：2010-02-24

申请号：KR1020087019653

申请日：2006-10-10

Applicant: 미쓰미덴기가부시기가이샤

Inventor： 미즈모토데츠야 ,  쇼지유야

IPC: G02B6/12 ,  G02B6/122 ,  G02B27/28

CPC classification number: G02F1/0955 ,  G02B2006/12159 ,  G02F1/225 ,  G02F1/3132 ,  G02F2203/04 ,  G02F2203/20

Abstract: 본 발명의 도파로형 광대역 광아이솔레이터는 기본 동작 파장을 λ라 하였을 때, 제1 도파로를 전파하는 제1 광파와 제2 도파로를 전파하는 제2 광파와의 위상차를 3π/2로 하는 상반 이상기와, 순방향 전파파에 대하여 π/2, 역방향 전파파에 대하여 -π/2의 위상차를 부여하는 비상반 이상기를 구비하고 있다. 이에 따라, 역방향 손실의 파장 의존성을 저감시키고, 이용 가능한 동작 파장 영역을 넓힐 수 있으며, 장거리 광섬유 통신에 사용되는 1.31㎛대와 1.55㎛대의 2개의 파장대에 있어서도 동작한다.
도파로형 광아이솔레이터, 기본 동작 파장, 도파로, 광파, 상반 이상기, 순방향 전파파, 역방향 전파파

公开(公告)号：KR1020080100213A

公开(公告)日：2008-11-14

申请号：KR1020087021082

申请日：2007-01-30

Applicant: 고쿠리츠다이가쿠호진 토쿄고교 다이가꾸 ,  미쓰미덴기가부시기가이샤

Inventor： 미즈모토데츠야 ,  사쿠라이가즈마사

IPC: G02B6/12

CPC classification number: G02B6/131 ,  G02B6/12004 ,  G02B6/125 ,  G02B6/2813 ,  G02B2006/12157 ,  G02F1/0955 ,  G02F1/2257 ,  G02F2001/217

Abstract: An optical isolator is provided with a substrate, a waveguide layer which is lattice-matched with the substrate, and a nonreciprocal phase shifter. In the optical isolator, a waveguide and a bending waveguide are formed in the waveguide layer for guiding waves in the waveguide layer, and a branch coupler is arranged. The refractive index is made larger than 3.36 by changing the semiconductor composition of the waveguide layer.

Abstract translation: 光隔离器设置有衬底，与衬底晶格匹配的波导层和不可逆移相器。 在光隔离器中，在波导层中形成波导管和弯曲波导，用于引导波导层中的波，并且布置有分支耦合器。 通过改变波导层的半导体组成，使折射率大于3.36。

公开(公告)号：KR1020080102146A

公开(公告)日：2008-11-24

申请号：KR1020087021488

申请日：2007-02-16

Applicant: 미쓰미덴기가부시기가이샤

Inventor： 나카지마이쿠오 ,  하야카와에츠지 ,  미즈모토데츠야

IPC: G02B27/28 ,  G02F1/095

CPC classification number: G02F1/0955 ,  G02F2001/212 ,  G02F2201/063

Abstract: A waveguide optical isolator comprises a substrate, a waveguide layer, a magnetic garnet, a magnetic field applying means, and a package substrate. Waveguide paths are formed in the waveguide layer. The field applying means comprises a first magnet and a second magnet. The first magnet and the second magnet are received and fixed in a magnet holder.

Abstract translation: 波导光隔离器包括基板，波导层，磁性石榴石，磁场施加装置和封装基板。 在波导层中形成波导路径。 场施加装置包括第一磁体和第二磁体。 第一磁体和第二磁体被接收并固定在磁体保持器中。

公开(公告)号：KR1020080100210A

公开(公告)日：2008-11-14

申请号：KR1020087021000

申请日：2007-01-30

Applicant: 고쿠리츠다이가쿠호진 토쿄고교 다이가꾸 ,  미쓰미덴기가부시기가이샤

Inventor： 미즈모토데츠야 ,  사쿠라이가즈마사

IPC: G02B6/12 ,  G02B27/28 ,  H01S5/026

CPC classification number: H01S5/026 ,  G02B6/122 ,  G02B6/2746 ,  G02B6/2861 ,  H01S5/0064

Abstract: An easily-producible integrated light isolator having a structure integrating a semiconductor laser and a light isolator integrally in which reverse propagation light of the light isolator is absorbed efficiently and generation of stray light is prevented. In an integrated light isolator where a semiconductor waveguide layer is formed on a compound semiconductor substrate, a semiconductor laser is formed in one part of the semiconductor waveguide layer and a light isolator is formed in the other part, a laser current injection electrode is arranged above the active layer of the semiconductor waveguide layer where the semiconductor laser is formed, and an end absorption layer is arranged at the output end of a reverse propagation light output waveguide of the light isolator on the opposite sides of the semiconductor laser.

Abstract translation: 一种容易制造的集成光隔离器，其具有集成半导体激光器和光隔离器的结构，其中防止光隔离器的反向传播光被有效吸收并产生杂散光。 在化合物半导体衬底上形成有半导体波导层的集成光隔离器中，半导体波导层的一部分形成半导体激光器，另一部分形成有光隔离器，在上方配置有激光电流注入电极 半导体激光器的半导体波导层的有源层和端部吸收层配置在半导体激光器的相对侧的光隔离器的反向传播光输出波导的输出端。

公开(公告)号：KR1020080085216A

公开(公告)日：2008-09-23

申请号：KR1020087019653

申请日：2006-10-10

Applicant: 미쓰미덴기가부시기가이샤

Inventor： 미즈모토데츠야 ,  쇼지유야

IPC: G02B6/12 ,  G02B6/122 ,  G02B27/28

CPC classification number: G02F1/0955 ,  G02B2006/12159 ,  G02F1/225 ,  G02F1/3132 ,  G02F2203/04 ,  G02F2203/20

Abstract: A waveguide type wideband optical isolator comprising a reciprocal phase shifter for setting a phase difference of 3'/2 between a first light wave propagating on a first waveguide and a second light wave propagating on a second waveguide when the basic operating wavelength is U, and a nonreciprocal phase shifter for imparting a phase difference of '/2 to a forward propagation wave and a phase difference of-'/2 to a reverse propagation wave. With such an arrangement, wavelength dependency of reverse loss is reduced and an available operating wavelength region can be widened. The optical isolator operates in two wavelength bands of 1.31 mum band and 1.55mum band which are employed in long distance optical fiber communication.

Abstract translation: 一种波导型宽带光隔离器，包括互逆移相器，用于当基本工作波长为U时，在第一波导上传播的第一光波与在第二波导上传播的第二光波之间设置3'/ 2的相位差;以及 用于向正向传播波施加'/ 2的相位差和与'/ 2'相位差相对于反向传播波的非互易移相器。 通过这样的布置，反向损耗的波长依赖性降低，并且可以扩大可用的工作波长区域。 光隔离器工作在长距离光纤通信中使用的1.31个母带和1.55mm波段的两个波段中。