JP2021022654A - ファイバーレーザー装置 - Google Patents
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- 238000009825 accumulation Methods 0.000 abstract description 26
- 238000004904 shortening Methods 0.000 abstract description 15
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 238000001816 cooling Methods 0.000 description 10
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- 229910052761 rare earth metal Inorganic materials 0.000 description 8
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- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 6
- 239000011162 core material Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
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- 230000003287 optical effect Effects 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- -1 rare earth ion Chemical class 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052769 Ytterbium Inorganic materials 0.000 description 2
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
- H01S3/09415—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode the pumping beam being parallel to the lasing mode of the pumped medium, e.g. end-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
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- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/0675—Resonators including a grating structure, e.g. distributed Bragg reflectors [DBR] or distributed feedback [DFB] fibre lasers
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
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- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
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- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/0915—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/1601—Solid materials characterised by an active (lasing) ion
- H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
- H01S3/1613—Solid materials characterised by an active (lasing) ion rare earth praseodymium
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/0813—Configuration of resonator
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
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- H01S3/173—Solid materials amorphous, e.g. glass fluoride glass, e.g. fluorozirconate or ZBLAN [ ZrF4-BaF2-LaF3-AlF3-NaF]
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- H01S5/00—Semiconductor lasers
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- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
- H01S5/0071—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping for beam steering, e.g. using a mirror outside the cavity to change the beam direction
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- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/32—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures
- H01S5/323—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/32308—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm
- H01S5/32341—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm blue laser based on GaN or GaP
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- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
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Abstract
Description
次に、本発明を実施例・事前検討例により具体的に説明する。ただし、本発明は、本実施例に限定されるものではない。
まず、本発明に関し事前に検討した事前検討例について説明する。この事前検討例では、図4に示すファイバーレーザー装置を使用したが、この装置は、図1において半導体レーザー11A,レンズ12A,および、波長板13を省略した構成である。ファイバー19を、フェルール31,32を用いて図2,図3と同様の構造のハウジング30に収容し固定した。
上記事前検討例で判明した熱飽和現象の軽減のために本実施例では次の改善を行った。
(1)ファイバー端面を保持するフェルールには、セラミックスに代えてより熱伝導率の高い金属性のフェルールを用いた。
(2)高出力動作時の熱蓄積により生じる熱膨張係数の違いに起因する、ファイバー端面や誘電体多層膜コーティング面の破損を防ぐため、フッ化物ファイバー、フェルール、ハウジングの各材料として、熱膨張係数の一致または近似する材料を選択した。
11,11A 半導体レーザー
19 ファイバー
30 ハウジング
30a 上部
30b 下部
30c,30d 側板
31,32 フェルール
Claims (6)
- 高濃度に活性元素が添加された短尺型ファイバーを用いたファイバーレーザー装置であって、
前記ファイバーの端部にはフェルールが挿入され、
前記ファイバーを収容し前記フェルールで支持するハウジングを備え、
前記ハウジングおよび前記フェルールはそれぞれ、前記ファイバーの素材の熱膨張係数に近似した金属材料から構成されるファイバーレーザー装置。 - 高濃度に活性元素が添加された短尺型ファイバーを用いたファイバーレーザー装置であって、
前記ファイバーの端部にはフェルールが挿入され、
前記ファイバーを収容し前記フェルールで支持するハウジングを備え、
前記フェルールおよび前記ハウジングは、90W/mK以上の熱伝導率と、10×10-6〜30×10-6/Kの熱膨張係数と、を有する材料から構成されるファイバーレーザー装置。 - 前記ファイバーの長さが300mm以下である請求項1または2に記載のファイバーレーザー装置。
- 前記ファイバーの素材がフッ化物ガラス材料である請求項1乃至3のいずれかに記載のファイバーレーザー装置。
- 前記ファイバーは、Pr元素の添加濃度が1500〜5000ppmであるファイバーコアを有する請求項4に記載のファイバーレーザー装置。
- 520nm±10nm、610nm±10nm、638nm±10nmのいずれか1つの波長、または、いずれか2つの波長でレーザー発振する請求項1乃至5のいずれかに記載のファイバーレーザー装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019138108A JP6836043B2 (ja) | 2019-07-26 | 2019-07-26 | ファイバーレーザー装置 |
CN202080045724.1A CN114008872A (zh) | 2019-07-26 | 2020-07-20 | 纤维激光装置 |
EP20848206.7A EP4007089A4 (en) | 2019-07-26 | 2020-07-20 | FIBER LASER DEVICE |
PCT/JP2020/027994 WO2021020188A1 (ja) | 2019-07-26 | 2020-07-20 | ファイバーレーザー装置 |
US17/644,208 US11621535B2 (en) | 2019-07-26 | 2021-12-14 | Fiber laser apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2019138108A JP6836043B2 (ja) | 2019-07-26 | 2019-07-26 | ファイバーレーザー装置 |
Publications (2)
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JP2021022654A true JP2021022654A (ja) | 2021-02-18 |
JP6836043B2 JP6836043B2 (ja) | 2021-02-24 |
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JP2019138108A Active JP6836043B2 (ja) | 2019-07-26 | 2019-07-26 | ファイバーレーザー装置 |
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US (1) | US11621535B2 (ja) |
EP (1) | EP4007089A4 (ja) |
JP (1) | JP6836043B2 (ja) |
CN (1) | CN114008872A (ja) |
WO (1) | WO2021020188A1 (ja) |
Citations (9)
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US6263143B1 (en) * | 1998-10-15 | 2001-07-17 | Lucent Technologies Inc. | Package housing for laser module wound on a spool |
JP2002022972A (ja) * | 2000-07-05 | 2002-01-23 | Sumitomo Electric Ind Ltd | 光学部品 |
JP2002531937A (ja) * | 1998-12-02 | 2002-09-24 | コーニング インコーポレイテッド | 脱着可能な集成カード型プラグイン励起レーザ装置 |
JP2004214325A (ja) * | 2002-12-27 | 2004-07-29 | Toshiba Corp | 光ファイバ放熱装置およびその製造方法 |
WO2010004882A1 (ja) * | 2008-07-08 | 2010-01-14 | セントラル硝子株式会社 | 広帯域な波長可変レーザ装置 |
JP2010182726A (ja) * | 2009-02-03 | 2010-08-19 | Mitsuboshi Diamond Industrial Co Ltd | 光ファイバ冷却装置 |
JP2015065189A (ja) * | 2013-09-24 | 2015-04-09 | ウシオ電機株式会社 | ファイバーレーザ光源装置 |
JP2015179761A (ja) * | 2014-03-19 | 2015-10-08 | ウシオ電機株式会社 | ファイバレーザ装置 |
US20180246280A1 (en) * | 2015-10-21 | 2018-08-30 | Trumpf Laser Gmbh | Fiber mounting units and fiber receiving elements |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6836043B2 (ja) | 2021-02-24 |
WO2021020188A1 (ja) | 2021-02-04 |
EP4007089A4 (en) | 2023-08-30 |
EP4007089A1 (en) | 2022-06-01 |
CN114008872A (zh) | 2022-02-01 |
US11621535B2 (en) | 2023-04-04 |
US20220109280A1 (en) | 2022-04-07 |
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