公开(公告)号：US10404103B2

公开(公告)日：2019-09-03

申请号：US15591151

申请日：2017-05-10

Applicant: WI-CHARGE LTD.

Inventor： Ortal Alpert ,  Rudiger Paschotta

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J50/30 ,  H01S3/00 ,  H01S3/083 ,  H04B10/114 ,  H04B10/80 ,  H01S5/10 ,  H01S3/08 ,  H01S3/06 ,  H04B1/04 ,  H01S5/04 ,  H01S5/14 ,  H01S3/0941 ,  H01S5/183 ,  H01S3/13

Abstract: An optical power beam transmission system, with a directional light transmitter and receiver. The transmitter contains an amplifying laser medium, and this together with a retroreflector in the receiver, forms a laser resonator. When lasing sets in, the receiver can extract optical power through an output coupler and convert it to electrical power. The gain medium may be a disc having a thickness substantially smaller than its lateral dimensions. The laser resonator is operated as a stable resonator to ensure safe operation. This is achieved by use of an adaptive optical element, for reducing the diameter of the energy beam impinging on the gain medium, thereby increasing the overlap between the energy beam and the gain medium. As the transmitter-receiver distance is changed, such as by movement of the receiver, the adaptive optical element focal length changes to ensure that the cavity remains within its stability zone.

公开(公告)号：US09653949B2

公开(公告)日：2017-05-16

申请号：US15095373

申请日：2016-04-11

Applicant: WI-CHARGE LTD.

Inventor： Ortal Alpert ,  Rudiger Paschotta

IPC: H04B1/02 ,  H02J50/30 ,  H01S3/00 ,  H01S3/083 ,  H04B10/114 ,  H04B10/80 ,  H01S5/10 ,  H01S3/08 ,  H01S3/06 ,  H04B1/04 ,  H01S5/04 ,  H01S5/14 ,  H01S3/0941 ,  H01S5/183 ,  H01S3/13

CPC classification number: H02J50/30 ,  H01S3/005 ,  H01S3/0604 ,  H01S3/0805 ,  H01S3/08059 ,  H01S3/08072 ,  H01S3/083 ,  H01S3/0941 ,  H01S3/1307 ,  H01S5/041 ,  H01S5/10 ,  H01S5/14 ,  H01S5/183 ,  H04B10/114 ,  H04B10/807 ,  H04B2001/0416

Abstract: An optical power beam transmission systems, with a directional light transmitter and receiver. The transmitter contains an amplifying laser medium, and this together with a retroreflector in the receiver, forms a laser resonator. When lasing sets in, the receiver can extract optical power through an output coupler and convert it to electrical power. The gain medium may be a disc having a thickness substantially smaller than its lateral dimensions. The laser resonator is operated as a stable resonator to ensure safe operation. This is achieved by use of an adaptive optical element, for reducing the diameter of the energy beam impinging on the gain medium, thereby increasing the overlap between the energy beam and the gain medium. As the transmitter-receiver distance is changed, such as by movement of the receiver, the adaptive optical element focal length changes to ensure that the cavity remains within its stability zone.

公开(公告)号：US09312660B2

公开(公告)日：2016-04-12

申请号：US14016151

申请日：2013-09-02

Applicant: WI-CHARGE LTD.

Inventor： Ortal Alpert ,  Rudiger Paschotta

IPC: H01J3/14 ,  G06M7/00 ,  H04B10/00 ,  H01S5/10 ,  H01S3/00 ,  H01S3/083 ,  H04B10/114 ,  H04B10/80 ,  H01S3/08 ,  H01S3/06 ,  H04B1/04 ,  H01S5/04 ,  H01S5/14 ,  H01S3/0941 ,  H01S5/183 ,  H01S3/13

CPC classification number: H02J50/30 ,  H01S3/005 ,  H01S3/0604 ,  H01S3/0805 ,  H01S3/08059 ,  H01S3/08072 ,  H01S3/083 ,  H01S3/0941 ,  H01S3/1307 ,  H01S5/041 ,  H01S5/10 ,  H01S5/14 ,  H01S5/183 ,  H04B10/114 ,  H04B10/807 ,  H04B2001/0416

Abstract: An optical power beam transmission systems, with a directional light transmitter and receiver. The transmitter contains an amplifying laser medium, and this together with a retroreflector in the receiver, forms a laser resonator. When lasing sets in, the receiver can extract optical power through an output coupler and convert it to electrical power. The gain medium may be a disc having a thickness substantially smaller than its lateral dimensions. The laser resonator is operated as a stable resonator to ensure safe operation. This is achieved by use of an adaptive optical element, for reducing the diameter of the energy beam impinging on the gain medium, thereby increasing the overlap between the energy beam and the gain medium. As the transmitter-receiver distance is changed, such as by movement of the receiver, the adaptive optical element focal length changes to ensure that the cavity remains within its stability zone.