JP2015525003A - キャビティダンピングおよび強制モード同期を使用するレーザ装置 - Google Patents
キャビティダンピングおよび強制モード同期を使用するレーザ装置 Download PDFInfo
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Abstract
Description
その電子−光学的変調器(2)は、単一の電気回路からマルチプレクシングの必要なく電力供給され、その電気回路は本質的に両方の状態―高いバイアス電圧に相当する状態と振動電圧の状態、を有する。ポッケルスセル(2)を制御する電気信号の複合波形は、LC回路リンギングと呼ばれる現象を使用することにより得られる。ここでLC回路は1つの誘導性要素と1つのコンデンサにより形成され、ここでポッケルスセルはそれ自体コンデンサとして機能する。ポッケルスセルは一般的に1−20pFのレンジの静電容量をもつことを特徴とする。リンギング周波数はつぎの式を使用して計算される:
I 利得媒質(1)が1つの光源によって励起される;
II 電子―光学的スイッチが最初は、ビームの偏光が偏光子(3)により反射されるように設定されている状態に留まり、それが共振器内で膨大な光学的損失を形成し、そしてレーザ生成を抑制する;
III 電子―光学的スイッチが光共振器の最低損失に相当する状態にスイッチされ、そして共振器は光子で満たされる;
IV ステップIIIのスイッチングのすぐ後で、電圧増幅の振動が始まり、それは結果的に光共振器内で生成される周期的損失となり、それにより共振器内で光パルスが形成される;
V 光パルスは共振器内で複数回往復する;光パルスが利得媒質(1)を通過する度毎に光パルスは利得媒質の励起状態を奪い、それにより増幅される;
VI パルスが所望のレベルまで増幅された後、電子―光学的スイッチが1つの偏光に相当する状態に戻され、そこでは放射のほとんどが偏光子(3)から反射するときに共振器から引き出され、このステップはキャビティダンピングと呼ばれる。
さらに別の実施形態では、利得媒質はフラッシュ光源により励起される。
Claims (10)
- レーザ装置であって、
−1つの光共振器と
−1つの利得媒質と、そして
−前記光共振器内のビームの偏光状態を変化させるための1つの電子―光学的スイッチまたは変調器と、
を少なくとも有し、
前記電子―光学的スイッチまたは変調器は、少なくともバイアス電圧と電圧振動の2つの状態を有する1つの電子信号により、前記状態の1つにおいて制御されるように構成される、レーザ装置において、
前記電圧振動が前記2つの状態の間のスイッチングの瞬間に開始され、そして1つの受動LC回路により画定されそして支持され、ここに前記LC回路は、前記LC回路の共振周波数に一致する周波数におけるリンギング現象を通じて前記電圧振動を生成するように構成される、
ことを特徴とするレーザ装置。 - 前記電子―光学的スイッチまたは変調器は1つの偏光子(3)と組み合わされたポッケルスセル(2)であり、そして前記ポッケルスセル(2)は電圧振動を生成する前記LC回路の中でコンデンサとして働く、ことを特徴とする請求項1に記載のレーザ装置。
- 前記LC回路のリンギング現象の前記電圧振動の周期は、本質的に前記光共振器内の1つの光パルスの往復時間に対する繰り返しである、ことを特徴とする請求項1または2に記載のレーザ装置。
- 1つの光共振器内に配置され、キロボルト領域の電圧信号をふくむ制御信号を1つの電子―光学的スイッチに提供するように構成された電子回路であって、
前記電子回路は高電圧電源が接続されるといつも起動されるように構成される1つの受動LC回路を有し、前記LC回路は1つのリンギング周波数を特徴として有する、
ことを特徴とする電子回路。 - 1つの電子―光学的要素、好適にはポッケルスセル(2)がコンデンサとして前記LC回路内に接続されている、ことを特徴とする請求項4に記載の電子回路。
- 前記LC回路内のインダクタ要素およびコンデンサ要素は、前記リンギング周波数の周期が光共振器内の1つの光パルスの往復時間より2倍長いように選択される、ことを特徴とする請求項4または5に記載の電子回路。
- パルスレーザ発生源と、レーザ制御電子ユニットとを少なくとも有するレーザワークステーションであって、前記レーザ発生源は請求項1−3のいずれか1項に記載の1つのレーザ装置を少なくとも有し、そして前記電子ユニットは請求項4−6のいずれか1項に記載の1つの回路を少なくとも有する、ことを特徴とするレーザワークステーション。
- 前記ワークステーションは医療用レーザとして使用されるように構成される、ことを特徴とする請求項7に記載のレーザワークステーション。
- 前記ワークステーションは材料加工に使用されるように構成される、ことを特徴とする請求項7に記載のレーザワークステーション。
- 前記ワークステーションは、分光測定、顕微鏡観察、または光と物質の相互作用研究などの材料科学用途に使用されるように構成される、ことを特徴とする請求項7に記載のレーザワークステーション。
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LT2012074A LT6021B (lt) | 2012-08-16 | 2012-08-16 | Lazeris, veikiantis aktyvios modų sinchronizacijos ir rezonatoriaus iškrovos režimu |
LT2012-074 | 2012-08-16 | ||
PCT/IB2012/055816 WO2014027227A1 (en) | 2012-08-16 | 2012-10-23 | Laser apparatus using cavity dumping and active mode locking |
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JP2015525003A true JP2015525003A (ja) | 2015-08-27 |
JP6238468B2 JP6238468B2 (ja) | 2017-11-29 |
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US (1) | US9306368B2 (ja) |
EP (1) | EP2885849A1 (ja) |
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WO2017169452A1 (ja) * | 2016-03-30 | 2017-10-05 | 富士フイルム株式会社 | レーザ装置および光音響計測装置 |
WO2017169336A1 (ja) * | 2016-03-30 | 2017-10-05 | 富士フイルム株式会社 | レーザ装置および光音響計測装置 |
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EP3023832B1 (de) * | 2014-11-24 | 2018-03-28 | Bergmann Messgeräte Entwicklung KG | Pockelszellen-Treiberschaltung mit Induktivitäten |
EP3128673B8 (de) * | 2015-08-06 | 2018-07-11 | Bergmann Messgeräte Entwicklung KG | Pockelszellen-treiberschaltung mit ohmschen, induktiven oder kapazitiven elementen |
CN106405884A (zh) * | 2015-08-12 | 2017-02-15 | 光越科技(深圳)有限公司 | 一种低电压透射式脉宽可调光纤在线电光调q开关 |
DE102016122705B3 (de) | 2016-11-24 | 2018-03-29 | Trumpf Scientific Lasers Gmbh + Co. Kg | Verfahren zur anregung eines kristalls einer pockels-zelle und verstärkungseinheit |
CN107768968B (zh) * | 2017-10-09 | 2019-05-10 | 湖北华中光电科技有限公司 | 一种半导体泵浦被动调q系统opo激光器 |
CN107706733B (zh) * | 2017-10-16 | 2020-02-18 | 山西大学 | 一种产生亚纳秒脉冲激光的方法 |
US10855047B1 (en) * | 2018-11-06 | 2020-12-01 | United States Of America As Represented By The Secretary Of The Air Force | Passively cavity-dumped laser apparatus, system and methods |
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- 2012-10-23 US US14/416,982 patent/US9306368B2/en active Active
- 2012-10-23 EP EP12798846.7A patent/EP2885849A1/en active Pending
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Publication number | Priority date | Publication date | Assignee | Title |
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WO2017169452A1 (ja) * | 2016-03-30 | 2017-10-05 | 富士フイルム株式会社 | レーザ装置および光音響計測装置 |
WO2017169336A1 (ja) * | 2016-03-30 | 2017-10-05 | 富士フイルム株式会社 | レーザ装置および光音響計測装置 |
JPWO2017169452A1 (ja) * | 2016-03-30 | 2018-08-09 | 富士フイルム株式会社 | レーザ装置および光音響計測装置 |
JPWO2017169336A1 (ja) * | 2016-03-30 | 2018-09-13 | 富士フイルム株式会社 | レーザ装置および光音響計測装置 |
CN108886231A (zh) * | 2016-03-30 | 2018-11-23 | 富士胶片株式会社 | 激光装置及光声测量装置 |
US11291372B2 (en) | 2016-03-30 | 2022-04-05 | Fujifilm Corporation | Laser device and photoacoustic measurement apparatus |
US11324402B2 (en) | 2016-03-30 | 2022-05-10 | Fujifilm Corporation | Laser device and photoacoustic measurement apparatus |
Also Published As
Publication number | Publication date |
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JP6238468B2 (ja) | 2017-11-29 |
US9306368B2 (en) | 2016-04-05 |
LT6021B (lt) | 2014-04-25 |
LT2012074A (lt) | 2014-02-25 |
EP2885849A1 (en) | 2015-06-24 |
US20150207292A1 (en) | 2015-07-23 |
WO2014027227A1 (en) | 2014-02-20 |
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