JP2018181952A - 複数のレーザモジュールを備えたレーザ装置 - Google Patents
複数のレーザモジュールを備えたレーザ装置 Download PDFInfo
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
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- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
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- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/102—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
- H01S3/1022—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/1306—Stabilisation of the amplitude
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Abstract
Description
12 レーザモジュール
14 レーザ電源部
16 合波器
18 光出力指令部
20 レーザモジュール選択・指令部
22 制御部
24 第1の光検出器
26 第2の光検出器
Claims (5)
- 複数のレーザモジュールと、
前記レーザモジュールの各々を駆動するためのレーザ電源部と、
前記複数のレーザモジュールが発振したレーザ光を合波して合波レーザ光として出力する合波器と、
前記合波レーザ光についての第1の光出力指令を生成する光出力指令部と、
前記第1の光出力指令に基づいて、前記複数のレーザモジュールから駆動すべきレーザモジュールを選択するとともに、前記複数のレーザモジュールの各々への第2の光出力指令を生成するレーザモジュール選択・指令部と、
前記第2の光出力指令に基づいて、前記レーザモジュール及び前記レーザ電源部を制御する制御部と、を備え、
レーザモジュール選択・指令部は、前記第1の光出力指令の変化に応じてレーザ発振する前記レーザモジュールの個数を切換えるときに、個数を切換えた時点から所定の時間が経過するまでの間は、個数を切換える前からレーザ発振していたレーザモジュールに対して、個数を切換える前からレーザ発振していたレーザモジュールだけで前記第1の光出力指令に応じた出力の合波レーザ光が出力されるように前記第2の光出力指令を出力する、レーザ装置。 - 前記レーザモジュール選択・指令部は、前記第1の光出力指令の変化に応じてレーザ発振する前記レーザモジュールの個数を変化させるときに、該変化に伴う各レーザモジュールへの第2の光出力指令の変化量又は各レーザモジュールに供給される電力の変化量が所定の上限値以下となるように、レーザ発振するレーザモジュールの個数の切換えの基準となる前記第1の光出力指令の閾値と、切換え前後でのレーザモジュールの個数とを決定する、請求項1のレーザ装置。
- 前記レーザモジュール選択・指令部は、前記第1の光出力指令の変化に応じてレーザ発振する前記レーザモジュールの個数を変化させるときに、前記レーザ装置の出力可能範囲内でのレーザ発振するレーザモジュールの個数の切換えの基準となる前記第1の光出力指令の閾値の、前記レーザ装置の出力可能範囲内での個数が最小となるように、前記閾値と、切換え前後でのレーザモジュールの個数とを決定する、請求項1又は2に記載のレーザ装置。
- 前記レーザモジュール選択・指令部は、レーザ発振する前記レーザモジュールの個数の変化に伴う各レーザモジュールへの第2の光出力指令の変化量又は各レーザモジュールに供給される電力の変化量が最小又は所定の上限値以下となるように、レーザ発振するレーザモジュールの個数の切換えの基準となる前記第1の光出力指令の閾値と、切換え前後でのレーザモジュールの個数とを決定する、請求項3のレーザ装置。
- 前記レーザモジュール選択・指令部は、前記第1の光出力指令の変化に応じてレーザ発振する前記レーザモジュールの個数を変化させるときに、前記第2の光出力指令を変化させるレーザモジュールの内、少なくとも1つのレーザモジュールに対する第2の光出力指令値を、時間的に勾配を付けて変化させる、請求項1〜4のいずれか1項に記載のレーザ装置。
Priority Applications (4)
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JP2017075837A JP6502993B2 (ja) | 2017-04-06 | 2017-04-06 | 複数のレーザモジュールを備えたレーザ装置 |
CN201810258225.5A CN108695682B (zh) | 2017-04-06 | 2018-03-27 | 具备多个激光模块的激光装置 |
US15/940,350 US10186830B2 (en) | 2017-04-06 | 2018-03-29 | Laser apparatus including plurality of laser modules |
DE102018107855.2A DE102018107855B4 (de) | 2017-04-06 | 2018-04-03 | Lasersystem mit mehreren Lasermodulen |
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JP2017075837A JP6502993B2 (ja) | 2017-04-06 | 2017-04-06 | 複数のレーザモジュールを備えたレーザ装置 |
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JP2018181952A true JP2018181952A (ja) | 2018-11-15 |
JP6502993B2 JP6502993B2 (ja) | 2019-04-17 |
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JP (1) | JP6502993B2 (ja) |
CN (1) | CN108695682B (ja) |
DE (1) | DE102018107855B4 (ja) |
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DE102017129790A1 (de) * | 2017-12-13 | 2019-06-13 | Osram Opto Semiconductors Gmbh | Verfahren zum Betreiben einer Laservorrichtung und Laservorrichtung |
WO2022235580A1 (en) * | 2021-05-01 | 2022-11-10 | Jfl Enterprises, Inc. | Illuminating device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10321933A (ja) * | 1997-05-15 | 1998-12-04 | Mitsubishi Electric Corp | 半導体励起固体レーザ |
JP2006150846A (ja) * | 2004-11-30 | 2006-06-15 | Canon Inc | 画像形成装置及び画像形成方法、プログラム |
WO2016060933A1 (en) * | 2014-10-15 | 2016-04-21 | Lumentum Operations Llc | Laser system and method of tuning the output power of the laser system |
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JP2006012888A (ja) * | 2004-06-22 | 2006-01-12 | Fuji Photo Film Co Ltd | 合波レーザ光照射方法および装置 |
JP5729107B2 (ja) * | 2011-04-20 | 2015-06-03 | 村田機械株式会社 | レーザ発振器制御装置 |
JP5816370B2 (ja) * | 2013-02-27 | 2015-11-18 | コマツ産機株式会社 | ファイバレーザ加工機の出力制御方法及びファイバレーザ加工機 |
JP6378901B2 (ja) * | 2014-03-06 | 2018-08-22 | オリンパス株式会社 | 光源装置、内視鏡装置及び光源制御方法 |
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- 2018-03-27 CN CN201810258225.5A patent/CN108695682B/zh active Active
- 2018-03-29 US US15/940,350 patent/US10186830B2/en active Active
- 2018-04-03 DE DE102018107855.2A patent/DE102018107855B4/de active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10321933A (ja) * | 1997-05-15 | 1998-12-04 | Mitsubishi Electric Corp | 半導体励起固体レーザ |
JP2006150846A (ja) * | 2004-11-30 | 2006-06-15 | Canon Inc | 画像形成装置及び画像形成方法、プログラム |
WO2016060933A1 (en) * | 2014-10-15 | 2016-04-21 | Lumentum Operations Llc | Laser system and method of tuning the output power of the laser system |
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Publication number | Publication date |
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DE102018107855A8 (de) | 2018-12-13 |
US20180294618A1 (en) | 2018-10-11 |
US10186830B2 (en) | 2019-01-22 |
DE102018107855B4 (de) | 2021-03-18 |
DE102018107855A1 (de) | 2018-10-11 |
JP6502993B2 (ja) | 2019-04-17 |
CN108695682B (zh) | 2020-07-17 |
CN108695682A (zh) | 2018-10-23 |
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