公开(公告)号：US20220200225A1

公开(公告)日：2022-06-23

申请号：US17129750

申请日：2020-12-21

Applicant: HAMAMATSU PHOTONICS K.K ,  ENERGETIQ TECHNOLOGY, INC.

Inventor： Akio SUZUKI ,  Toru FUJITA ,  Akinori ASAI ,  Yusei NAGATA ,  Shinichi OHBA ,  Takayuki OHSHIRO ,  Matthew PARTLOW ,  Ron COLLINS ,  Stephen F. HORNE ,  Laura OWENS

IPC: H01S3/034 ,  H01S3/038

Abstract: A light emitting sealed body includes: a housing which stores a discharge gas and is provided with a first opening to which first light is incident along a first optical axis and a second opening from which second light is emitted along a second optical axis; a first window portion which hermetically seals the first opening; a second window portion which hermetically seals the second opening; and a first electrode and a second electrode. The housing is formed of a light shielding material which does not transmit the first light and the second light. An internal space is defined by the housing, the first window portion, and the second window portion and the internal space is filled with the discharge gas. The first opening and the second opening are disposed so that the first optical axis and the second optical axis intersect each other.

公开(公告)号：US20250087958A1

公开(公告)日：2025-03-13

申请号：US18291611

申请日：2022-03-18

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Masaru SHIMOMAKI ,  Shin KATO ,  Shinichi OHBA ,  Keita UMENO

IPC: H01S3/067 ,  H01S3/04 ,  H01S3/042

Abstract: A fiber laser device includes: a housing; a first optical element configured to include a first fiber and a first fiber connector; and a second optical element configured to include a second fiber and a second fiber connector. The first optical element and the second optical element are optically connectable via the first fiber connector and the second fiber connector, at least a part of the first optical element is housed in a module housing, an opening is formed in a wall portion of the housing, the module housing is detachably attached inside the housing through the opening, and the end portion of the first fiber and the first fiber connector are provided to project from the module housing at one end portion of the module housing.

公开(公告)号：US20210373246A1

公开(公告)日：2021-12-02

申请号：US17286601

申请日：2019-07-11

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Ryota KAKEI ,  Shin KATO ,  Fumitsugu FUKUYO ,  Tomoya NAKAZAWA ,  Masaru SHIMOMAKI ,  Shinichi OHBA ,  Yu MATSUSHIRO

IPC: G02B6/38 ,  G02F1/35 ,  G02F1/365

Abstract: A fiber structure includes first and second optical fibers disposed such that end portions thereof butt, a sheet-shaped saturable absorber including a carbon nanotube and disposed between the end portion of the first optical fiber and the end portion of the second optical fiber, and a housing internally accommodating the end portion of the first optical fiber and the end portion of the second optical fiber. A space in the housing including the saturable absorber is airtight.

公开(公告)号：US20220200226A1

公开(公告)日：2022-06-23

申请号：US17129755

申请日：2020-12-21

Applicant: HAMAMATSU PHOTONICS K.K. ,  ENERGETIQ TECHNOLOGY, INC.

Inventor： Akio SUZUKI ,  Toru FUJITA ,  Akinori ASAI ,  Yusei Nagata ,  Shinichi OHBA ,  Matthew PARTLOW ,  Ron COLLINS ,  Stephen F. HORNE ,  Laura OWENS

IPC: H01S3/038 ,  H01S3/097 ,  H01S3/034

Abstract: A light emitting unit includes a light emitting sealed body and a voltage application circuit. The light emitting sealed body includes a container to which laser light for maintaining plasma is incident and from which light from the plasma is emitted, a first electrode which includes a first discharge portion, and a second electrode which includes a second discharge portion. An end portion of the first discharge portion has a shape in which a thickness is thinned as it goes toward the second discharge portion and an end surface of the second discharge portion extends along a plane perpendicular to an extending direction of the first discharge portion. The voltage application circuit controls a potential difference between the first electrode and the second electrode by adjusting a voltage applied to at least the first electrode.

公开(公告)号：US20250007232A1

公开(公告)日：2025-01-02

申请号：US18291637

申请日：2022-03-18

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Masaru SHIMOMAKI ,  Shin KATO ,  Shinichi OHBA ,  Keita UMENO

IPC: H01S3/067 ,  H01S3/094 ,  H01S3/1118

Abstract: A fiber laser device includes: a housing; a first optical element configured to include a first fiber and a first fiber connector; a second optical element configured to include a second fiber and a second fiber connector; and a movable holder configured to hold the second fiber connector and be movable so that an orientation of the second fiber connector changes between a first orientation and a second orientation. The first optical element and the second optical element are optically connectable via the first fiber connector and the second fiber connector, a first opening is formed in a wall portion of the housing, the first orientation is an orientation when the first optical element and the second optical element are optically connected, and the second orientation is an orientation in which an end surface of the second fiber is exposed through the first opening.