JP6141452B2 - 多波長レーザ装置 - Google Patents
多波長レーザ装置 Download PDFInfo
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Description
前記励起光を透過し基本波長のレーザ光を反射するための端部を前記励起光源側に有し、前記励起光源から出射された前記複数の励起光を用いて光増幅をし、基本波長が互いに異なる複数のレーザ光を出射するレーザ媒質と、
前記レーザ媒質から出射された前記複数のレーザ光の各々の進行方向を波長及び入射方向に応じて変更させ、前記複数のレーザ光を同一軸上に重なり合った状態で出射する分散素子と、
周期的に形成された分極反転領域及び非分極反転領域を有し、前記分散素子から出射され前記同一軸上で重なり合った状態の前記複数のレーザ光に対し前記分極反転領域及び非分極反転領域において波長変換をし、前記波長変換により得られた複数のレーザ光を同一軸上に重なり合った状態で出射する、波長変換素子と、
前記レーザ媒質の前記励起光源側の前記端部とともに前記基本波長が互いに異なる複数のレーザ光に対する共振器を構成し、前記波長変換素子から出射された前記波長変換により得られた複数のレーザ光を透過するとともに、前記基本波長が互いに異なる複数のレーザ光を反射するミラーと、を備えるようにしている。
以下に、本発明の各実施の形態3について図6を用いて説明する。
Claims (5)
- レーザ媒質に利得を与えるための複数の励起光を出射する励起光源と、
前記励起光を透過し基本波長のレーザ光を反射するための端部を前記励起光源側に有し、前記励起光源から出射された前記複数の励起光を用いて光増幅をし、基本波長が互いに異なる複数のレーザ光を出射するレーザ媒質と、
前記レーザ媒質から出射された前記複数のレーザ光の各々の進行方向を波長及び入射方向に応じて変更させ、前記複数のレーザ光を同一軸上に重なり合った状態で出射する分散素子と、
周期的に形成された分極反転領域及び非分極反転領域を有し、前記分散素子から出射され前記同一軸上で重なり合った状態の前記複数のレーザ光に対し前記分極反転領域及び非分極反転領域において波長変換をし、前記波長変換により得られた複数のレーザ光を同一軸上に重なり合った状態で出射する、波長変換素子と、
前記レーザ媒質の前記励起光源側の前記端部とともに前記基本波長が互いに異なる複数のレーザ光に対する共振器を構成し、前記波長変換素子から出射された前記波長変換により得られた複数のレーザ光を透過するとともに、前記基本波長が互いに異なる複数のレーザ光を反射するミラーと、
を備える多波長レーザ装置。 - 前記波長変換素子は、
前記非分極反転領域及び分極反転領域を複数有し、
複数の前記非分極反転領域及び前記分極反転領域における第2高調波発生及び和周波発生の少なくとも一方を用いた波長変換により、前記分散素子から出射された前記同一軸上で重なり合った状態の複数のレーザ光に対し前記波長変換をし、前記波長変換により得られた互いに異なる複数の波長のレーザ光を同一軸上に重なり合った状態で出射する、
請求項1に記載の多波長レーザ装置。 - 前記レーザ媒質と前記分散素子との間に配置され、前記レーザ媒質から出射され前記基本波長が互いに異なる複数のレーザ光を、前記分散素子の同一領域に向けて出射する光学レンズ
をさらに備える、請求項1に記載の多波長レーザ装置。 - 前記波長変換素子は、
前記複数の前記非分極反転領域及び前記分極反転領域の分極反転周期が、前記基本波長のレーザ光が入射する側の端部から前記波長変換により得られたレーザ光を出射する側の端部に向かって、連続的に漸増または漸減する構造を有する、
請求項2または請求項3に記載の多波長レーザ装置。 - 前記分散素子は、
前記基本波長が互いに異なる複数のレーザ光の入射方向を調整できる角度調整機構を有する、
請求項1ないし請求項4のいずれかに記載の多波長レーザ装置。
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JPWO2015115301A1 (ja) * | 2014-01-30 | 2017-03-23 | 三菱電機株式会社 | ビーム結合装置およびビーム結合装置の出力回復方法 |
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CN110337763B (zh) * | 2017-01-20 | 2020-08-14 | 三菱电机株式会社 | 激光装置 |
CN107589549B (zh) * | 2017-10-19 | 2023-10-27 | 四川思创激光科技有限公司 | 一种光纤激光合成器 |
JP2019144435A (ja) * | 2018-02-21 | 2019-08-29 | 沖電気工業株式会社 | テラヘルツ波検出素子 |
WO2019163069A1 (ja) * | 2018-02-22 | 2019-08-29 | 三菱電機株式会社 | レーザ発振装置 |
WO2022153707A1 (ja) * | 2021-01-12 | 2022-07-21 | パナソニックホールディングス株式会社 | 半導体レーザ装置、及び、半導体レーザ装置の制御方法 |
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CN100463310C (zh) | 2005-03-30 | 2009-02-18 | 三菱电机株式会社 | 模式控制波导型激光装置 |
JP2007173769A (ja) | 2005-11-28 | 2007-07-05 | Nichia Chem Ind Ltd | レーザ装置 |
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