公开(公告)号：US20110280271A1

公开(公告)日：2011-11-17

申请号：US13178355

申请日：2011-07-07

Applicant: Erjun Zang ,  Yang Zhao ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

Inventor： Erjun Zang ,  Yang Zhao ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

IPC: H01S3/0941 ,  G02B17/08 ,  H01S3/081

CPC classification number: G02B26/001 ,  H01S3/105 ,  H01S5/12 ,  H01S5/142

Abstract: The disclosure discloses a fabry-Perot (F-P) cavity, which is a folded confocal cavity integrally formed by a monolithic optical element, the folded confocal cavity having three reflection surfaces, wherein a first reflection surface is a plane and at the same time serves as an input/output coupling surface, a second reflection surface is a plane, and a third surface is a spherical surface, curvature radius of which is equal to half of a round trip geometric length of light in the folded confocal cavity. The invention further discloses a laser based on the F-P cavity. The solution of the disclosure solves the problems in existing folded F-P cavity, such as unsatisfactory stability, sensitive to outside inferences, bulky and complicated construction.

Abstract translation: 本公开公开了一种fabry-Perot（FP）腔，其是由单片光学元件整体形成的折叠共焦腔，所述折叠共焦腔具有三个反射表面，其中第一反射表面是平面，并且同时用作 输入/输出耦合表面，第二反射表面是平面，第三表面是球面，其曲率半径等于折叠共焦腔中的往返几何长度的一半。 本发明还公开了一种基于F-P腔的激光器。 本公开的解决方案解决了现有折叠F-P腔的问题，如稳定性不佳，外部推断敏感，体积庞大和复杂的结构。

公开(公告)号：US08107509B2

公开(公告)日：2012-01-31

申请号：US12865965

申请日：2009-01-22

Applicant: Erjun Zang ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

Inventor： Erjun Zang ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

IPC: H01S3/11 ,  H01S3/081 ,  H01S3/08

CPC classification number: H01S5/141 ,  G02B5/04 ,  G02B5/18 ,  G02B5/1814 ,  G02B5/1861 ,  G02B5/284 ,  H01S3/08059 ,  H01S5/02248 ,  H01S5/143

Abstract: This invention relates to a monolithic folded F-P cavity used for semiconductor laser, which is composed of a monolithic optical element. The monolithic optical element is made of the material having low propagation loss for a certain spectrum range. Light entering through an input/output coupling surface of the monolithic optical element is reflected several times between the input/output coupling surface and at least two high reflection surfaces within the monolithic optical element, and then at least one part of the light exits through the input/output coupling surface along the path which is collinear with the incident light but in an opposite direction. By means of integrating reflecting and coupling parts of the folded F-P cavity within a single monolithic optical material, this invention greatly improves the reliability of the F-P cavity, and has other advantages, such as insensitive to outside interferences, smaller size, simpler structure and easy usage. A semiconductor laser using the monolithic folded F-P cavity is also provided.

Abstract translation: 本发明涉及由单片光学元件组成的用于半导体激光器的单片折叠F-P腔。 单片光学元件由在一定光谱范围内具有低传播损耗的材料制成。 通过单片光学元件的输入/输出耦合表面进入的光在输入/输出耦合表面与单片光学元件内的至少两个高反射表面之间反射若干次，然后光的至少一部分通过 沿着与入射光共线但沿相反方向的路径的输入/输出耦合表面。 通过将折叠FP腔的反射和耦合部分集成在单个单片光学材料内，本发明大大提高了FP腔的可靠性，并且具有其他优点，如对外部干扰不敏感，尺寸更小，结构更简单，容易 用法。 还提供了使用单片折叠F-P腔的半导体激光器。

公开(公告)号：US20120014399A1

公开(公告)日：2012-01-19

申请号：US13188592

申请日：2011-07-22

Applicant: Shaokai WANG ,  Erjun ZANG ,  Ye LI ,  Jianping CAO ,  Zhanjun FANG

Inventor： Shaokai WANG ,  Erjun ZANG ,  Ye LI ,  Jianping CAO ,  Zhanjun FANG

IPC: H01S3/10

CPC classification number: H01S5/143 ,  H01S3/1055 ,  H01S5/02248 ,  H01S5/141

Abstract: A method for quasi-synchronous tuning of laser wavelength or frequency of grating external-cavity laser and a corresponding laser are provided. A grating or mirror is rotated around a quasi-synchronous tuning point (Pq) to achieve the quasi-synchronous tuning of frequency selections by grating and resonance cavity, wherein, on the xOy coordinate plane, from the perspective of actual physical space of the laser, the rotation center Pq(xq, yq) satisfying the quasi-synchronous tuning condition can be considered as being extended from the rotation center P0(x0, y0) under the conventional synchronous tuning condition to the region enclosed by two parabolas near P0. According to the present disclosure, approximately-synchronous tuning of laser is achieved with simple and flexible designs.

Abstract translation: 提供了激光波长或光栅外腔激光器频率及相应激光器的准同步调谐方法。 光栅或反射镜围绕准同步调谐点（Pq）旋转，以通过光栅和谐振腔实现频率选择的准同步调谐，其中在xOy坐标平面上，从激光的实际物理空间的角度 满足准同步调谐条件的旋转中心Pq（xq，yq）可以被认为在常规同步调谐条件下从旋转中心P0（x0，y0）延伸到靠近P0的两个抛物面包围的区域。 根据本公开，通过简单和灵活的设计来实现激光的近似同步调谐。

公开(公告)号：US20110032961A1

公开(公告)日：2011-02-10

申请号：US12865965

申请日：2009-01-22

Applicant: Erjun Zang ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

Inventor： Erjun Zang ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

IPC: H01S3/105 ,  H01S5/14 ,  H01S3/081 ,  G02B5/04

CPC classification number: H01S5/141 ,  G02B5/04 ,  G02B5/18 ,  G02B5/1814 ,  G02B5/1861 ,  G02B5/284 ,  H01S3/08059 ,  H01S5/02248 ,  H01S5/143

Abstract: This invention relates to a monolithic folded F-P cavity used for semiconductor laser, which is composed of a monolithic optical element. The monolithic optical element is made of the material having low propagation loss for a certain spectrum range. Light entering through an input/output coupling surface of the monolithic optical element is reflected several times between the input/output coupling surface and at least two high reflection surfaces within the monolithic optical element, and then at least one part of the light exits through the input/output coupling surface along the path which is collinear with the incident light but in an opposite direction. By means of integrating reflecting and coupling parts of the folded F-P cavity within a single monolithic optical material, this invention greatly improves the reliability of the F-P cavity, and has other advantages, such as insensitive to outside interferences, smaller size, simpler structure and easy usage. A semiconductor laser using the monolithic folded F-P cavity is also provided.

Abstract translation: 本发明涉及由单片光学元件组成的用于半导体激光器的单片折叠F-P腔。 单片光学元件由在一定光谱范围内具有低传播损耗的材料制成。 通过单片光学元件的输入/输出耦合表面进入的光在输入/输出耦合表面与单片光学元件内的至少两个高反射表面之间反射若干次，然后光的至少一部分通过 沿着与入射光共线但沿相反方向的路径的输入/输出耦合表面。 通过将折叠FP腔的反射和耦合部分集成在单个单片光学材料内，本发明大大提高了FP腔的可靠性，并且具有其他优点，如对外部干扰不敏感，尺寸更小，结构更简单，容易 用法。 还提供了使用单片折叠F-P腔的半导体激光器。

公开(公告)号：US09036668B2

公开(公告)日：2015-05-19

申请号：US12990594

申请日：2009-06-10

Applicant: Erjun Zang ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

Inventor： Erjun Zang ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

IPC: H01S3/098 ,  H01S3/086 ,  H01S5/06 ,  H01S5/14 ,  H01S3/1055 ,  H01S5/022

CPC classification number: H01S5/06 ,  H01S3/1055 ,  H01S5/02248 ,  H01S5/141 ,  H01S5/143

Abstract: A method for quasi-synchronous tuning of wavelength or frequency of grating external-cavity semiconductor laser and a corresponding semiconductor laser are provided. A grating or mirror is rotated around a quasi-synchronous tuning point (Pq) as rotation center, so as to achieve the frequency selections by grating and resonance cavity in quasi-synchronous tuning, wherein the angle of the line between the quasi-synchronous tuning point (Pq) and a conventional synchronous tuning point (P0) with respect to the direction of light incident on the grating is determined according to the angle difference between the incidence angle and diffraction angle of light on the grating. According to present invention, approximately synchronous tuning of laser is achieved with a simple and flexible design.

Abstract translation: 提供了一种用于光栅外腔半导体激光器的波长或频率的准同步调谐的方法以及相应的半导体激光器。 光栅或反射镜围绕作为旋转中心的准同步调谐点（Pq）旋转，以便通过准同步调谐中的光栅和谐振腔实现频率选择，其中准同步调谐 根据入射角和光栅衍射角之间的角度差确定相对于入射到光栅上的光的方向的常规同步调谐点（P0）和点（Pq）。 根据本发明，通过简单灵活的设计实现激光的近似同步调谐。

公开(公告)号：US08681825B2

公开(公告)日：2014-03-25

申请号：US13188592

申请日：2011-07-22

Applicant: Shaokai Wang ,  Erjun Zang ,  Ye Li ,  Jianping Cao ,  Zhanjun Fang

Inventor： Shaokai Wang ,  Erjun Zang ,  Ye Li ,  Jianping Cao ,  Zhanjun Fang

IPC: H01S3/098 ,  H01S3/086

CPC classification number: H01S5/143 ,  H01S3/1055 ,  H01S5/02248 ,  H01S5/141

Abstract: A method for quasi-synchronous tuning of laser wavelength or frequency of grating external-cavity laser and a corresponding laser are provided. A grating or mirror is rotated around a quasi-synchronous tuning point (Pq) to achieve the quasi-synchronous tuning of frequency selections by grating and resonance cavity, wherein, on the xOy coordinate plane, from the perspective of actual physical space of the laser, the rotation center Pq(xq, yq) satisfying the quasi-synchronous tuning condition can be considered as being extended from the rotation center P0(x0, y0) under the conventional synchronous tuning condition to the region enclosed by two parabolas near P0. According to the present disclosure, approximately-synchronous tuning of laser is achieved with simple and flexible designs.

Abstract translation: 提供了激光波长或光栅外腔激光器频率及相应激光器的准同步调谐方法。 光栅或反射镜围绕准同步调谐点（Pq）旋转，以通过光栅和谐振腔实现频率选择的准同步调谐，其中在xOy坐标平面上，从激光的实际物理空间的角度 满足准同步调谐条件的旋转中心Pq（xq，yq）可以被认为在常规同步调谐条件下从旋转中心P0（x0，y0）延伸到靠近P0的两个抛物面包围的区域。 根据本公开，通过简单和灵活的设计来实现激光的近似同步调谐。

公开(公告)号：US08284813B2

公开(公告)日：2012-10-09

申请号：US13178355

申请日：2011-07-07

Applicant: Erjun Zang ,  Yang Zhao ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

Inventor： Erjun Zang ,  Yang Zhao ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

IPC: H01S3/081 ,  H01S3/083

CPC classification number: G02B26/001 ,  H01S3/105 ,  H01S5/12 ,  H01S5/142

Abstract: The disclosure discloses a Fabry-Perot (F-P) cavity, which is a folded confocal cavity integrally formed by a monolithic optical element, the folded confocal cavity having three reflection surfaces, wherein a first reflection surface is a plane and at the same time serves as an input/output coupling surface, a second reflection surface is a plane, and a third surface is a spherical surface, curvature radius of which is equal to half of a round trip geometric length of light in the folded confocal cavity. The invention further discloses a laser based on the F-P cavity. The solution of the disclosure solves the problems in existing folded F-P cavity, such as unsatisfactory stability, sensitive to outside inferences, bulky and complicated construction.

Abstract translation: 本公开公开了一种法布里 - 珀罗（FP）腔，其是由单片光学元件整体形成的折叠共焦腔，所述折叠的共焦腔具有三个反射表面，其中第一反射表面是平面，并且同时用作 输入/输出耦合表面，第二反射表面是平面，第三表面是球面，其曲率半径等于折叠共焦腔中的往返几何长度的一半。 本发明还公开了一种基于F-P腔的激光器。 本公开的解决方案解决了现有折叠F-P腔的问题，如稳定性不佳，外部推断敏感，体积庞大和复杂的结构。

公开(公告)号：US20110261843A1

公开(公告)日：2011-10-27

申请号：US12990594

申请日：2009-06-10

Applicant: Erjun Zang ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

Inventor： Erjun Zang ,  Jianping Cao ,  Ye Li ,  Zhanjun Fang

IPC: H01S5/06

CPC classification number: H01S5/06 ,  H01S3/1055 ,  H01S5/02248 ,  H01S5/141 ,  H01S5/143

Abstract: A method for quasi-synchronous tuning of wavelength or frequency of grating external-cavity semiconductor laser and a corresponding semiconductor laser are provided. A grating or mirror is rotated around a quasi-synchronous tuning point (Pq) as rotation center, so as to achieve the frequency selections by grating and resonance cavity in quasi-synchronous tuning, wherein the angle of the line between the quasi-synchronous tuning point (Pq) and a conventional synchronous tuning point (P0) with respect to the direction of light incident on the grating is determined according to the angle difference between the incidence angle and diffraction angle of light on the grating. According to present invention, approximately synchronous tuning of laser is achieved with a simple and flexible design.

Abstract translation: 提供了一种用于光栅外腔半导体激光器的波长或频率的准同步调谐的方法以及相应的半导体激光器。 光栅或反射镜围绕作为旋转中心的准同步调谐点（Pq）旋转，以便通过准同步调谐中的光栅和谐振腔实现频率选择，其中准同步调谐 根据入射角和光栅衍射角之间的角度差确定相对于入射到光栅上的光的方向的常规同步调谐点（P0）和点（Pq）。 根据本发明，通过简单灵活的设计实现激光的近似同步调谐。