公开(公告)号：US10027426B2

公开(公告)日：2018-07-17

申请号：US15711174

申请日：2017-09-21

Applicant: Korea Research Institute of Standards and Science

Inventor： Hee Su Park ,  Eun Joo Lee ,  Hee Jung Lee ,  Sang Min Lee

IPC: H04B10/70 ,  H04B10/291 ,  H04J14/02 ,  H04B10/50 ,  H04B10/2507 ,  H04B10/61

Abstract: According to one embodiment of the present invention, there is provided a photon generating apparatus including: a light source configured to emit light; an optical medium configured to generate a pair of photons from the light; a detector configured to detect one photon from the pair of photons and output a detection time of the photon; a buffer including an optical line and an optical switch disposed on an optical path of the photon, which is one photon except for the photon detected by the detector, of the pair of photons; and a processor configured to output a driving signal which controls the optical switch so that a delay occurs at the optical path using the detection time of the photon detected by the detector.

公开(公告)号：US20180145768A1

公开(公告)日：2018-05-24

申请号：US15711174

申请日：2017-09-21

Applicant: Korea Research Institute of Standards and Science

Inventor： Hee Su PARK ,  Eun Joo Lee ,  Hee Jung Lee ,  Sang Min Lee

IPC: H04B10/70 ,  H04B10/291 ,  H04B10/61 ,  H04B10/50 ,  H04B10/2507 ,  H04J14/02

CPC classification number: H04B10/70 ,  H04B10/2507 ,  H04B10/2912 ,  H04B10/503 ,  H04B10/6161 ,  H04J14/02

Abstract: According to one embodiment of the present invention, there is provided a photon generating apparatus including: a light source configured to emit light; an optical medium configured to generate a pair of photons from the light; a detector configured to detect one photon from the pair of photons and output a detection time of the photon; a buffer including an optical line and an optical switch disposed on an optical path of the photon, which is one photon except for the photon detected by the detector, of the pair of photons; and a processor configured to output a driving signal which controls the optical switch so that a delay occurs at the optical path using the detection time of the photon detected by the detector.

公开(公告)号：US10948342B2

公开(公告)日：2021-03-16

申请号：US16419242

申请日：2019-05-22

Applicant: Korea Research Institute of Standards and Science

Inventor： Sang Min Lee ,  Hee Su Park

IPC: G01J1/04 ,  G01J1/44 ,  G02B6/293

Abstract: The present invention relates to a Bell state measurement apparatus capable of increasing a probability in which a determination that a Bell state measurement fails by using an optical fiber.