JP7009412B2 - 自己起動型受動モードロック8の字ファイバレーザ - Google Patents
自己起動型受動モードロック8の字ファイバレーザ Download PDFInfo
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- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/1086—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering using scattering effects, e.g. Raman or Brillouin effect
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Description
本願は、2018年5月18日出願の米国仮特許出願第62/673219号の利益を主張し、参照によりここに取り込まれる。
Claims (9)
- 受動モードロック8の字ファイバレーザであって、
2×2中央カプラによってともに結合されて8の字構成をなす一方向ファイバループ及び双方向ファイバループミラーを備え、
前記一方向ファイバループが、
希土類ドープファイバの部分と、
前記希土類ドープファイバの部分に結合されてファイバループを形成するシングルモードファイバの部分と、
伝搬する光信号を増幅するために前記希土類ドープファイバにポンプビームを導入するために前記希土類ドープファイバの部分の入力端に配置された入力カプラと、
前記受動モードロック8の字ファイバレーザによって生成される光パルスを外部結合するために前記シングルモードファイバの部分に沿って配置された出力カプラと、
前記シングルモードファイバの部分に沿って配置されたバンドパスフィルタと
を備え、
前記双方向ファイバループミラーが、
シングルモードファイバの部分と、
前記シングルモードファイバの部分に結合されてループミラーを形成するラマンファイバの部分であって、伝搬する前記光信号に対する既知の分散値に影響を与えるように選択された所定長Lを有するラマンファイバの部分と
を備え、
前記2×2中央カプラは結合比によって規定され、出力として光パルスを生成するために受動モードロック低ノイズモードに自己起動するように構成され、前記8の字ファイバレーザはさらに、前記2×2中央カプラの前記結合比、前記出力カプラの前記結合比、前記シングルモードファイバ及びラマンファイバの部分に関連する累積分散に基づく前記8の字ファイバレーザの累積群速度分散(GVD)並びに前記バンドパスフィルタの特性からなるグループから選択される1以上の動作パラメータを制御することによって低ノイズモードで自己起動するように構成され、
前記2×2中央カプラは0.17から0.23の範囲内の結合比を呈するように構成され、前記出力カプラは0.35から0.55の範囲内の結合比を呈するように構成され、前記GVDは0.27から0.30ps 2 の範囲内である、
受動モードロック8の字ファイバレーザ。 - 前記動作パラメータのグループは、前記希土類ドープファイバに入力される初期高パワーポンプを搬送するようにポンプレーザダイオードに印加される初期駆動電流をさらに含む、請求項1に記載の受動モードロック8の字ファイバレーザ。
- 前記一方向ファイバループ内で前記希土類ドープファイバの部分の前記出力に配置された光アイソレータをさらに備える、請求項1に記載の受動モードロック8の字ファイバレーザ。
- 前記2×2中央カプラは、0.17から0.23の範囲内の結合比を呈するように構成された、請求項1に記載の受動モードロック8の字ファイバレーザ。
- 前記出力カプラは、0.35から0.55の範囲内の結合比を呈するように構成された、請求項1に記載の受動モードロック8の字ファイバレーザ。
- 前記ラマンファイバの部分は、10メートルを超える長さLを有する、請求項1に記載の受動モードロック8の字ファイバレーザ。
- 前記一方向ファイバループは、希土類ドープ偏波保持ファイバの部分及び偏波保持シングルモードファイバの部分を備える、請求項1に記載の受動モードロック8の字ファイバレーザ。
- 前記双方向ファイバループミラーは、偏波保持シングルモードファイバの部分及び偏波保持ラマンファイバの部分を備える、請求項1に記載の受動モードロック8の字ファイバレーザ。
- 前記一方向ファイバループは、希土類ドープ偏波保持ファイバの部分及び偏波保持シングルモードファイバの部分を備え、
前記双方向ファイバループミラーは、偏波保持シングルモードファイバの部分及び偏波保持ラマンファイバの部分を備える、
請求項1に記載の受動モードロック8の字ファイバレーザ。
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US201862673219P | 2018-05-18 | 2018-05-18 | |
US62/673,219 | 2018-05-18 | ||
US16/200,810 | 2018-11-27 | ||
US16/200,810 US10490968B1 (en) | 2018-05-18 | 2018-11-27 | Self-starting, passively modelocked figure eight fiber laser |
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JP2019201208A JP2019201208A (ja) | 2019-11-21 |
JP7009412B2 true JP7009412B2 (ja) | 2022-02-10 |
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US11909165B2 (en) * | 2019-04-25 | 2024-02-20 | University Of Rochester | Driven-cavity femtosecond sources |
WO2021126674A1 (en) * | 2019-12-18 | 2021-06-24 | Ofs Fitel, Llc | Amplified hollow core fiber transmission |
CN111769429A (zh) * | 2020-06-28 | 2020-10-13 | 南京邮电大学 | 一种可切换的耗散孤子和传统孤子锁模光纤激光系统 |
CN112072451B (zh) * | 2020-08-04 | 2022-02-01 | 华南理工大学 | 一种1.7μm全光纤大能量飞秒激光系统 |
EP4165738B1 (en) * | 2020-08-25 | 2024-09-18 | MPB Communications Inc. | Figure eight laser |
US20220181837A1 (en) * | 2020-12-09 | 2022-06-09 | Cybel, LLC. | Polarization-Maintaining Fiber Laser Tunable Over Two Micron Region |
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US20190356106A1 (en) | 2019-11-21 |
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US10490968B1 (en) | 2019-11-26 |
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