JP2014513411A - 高次モードファイバを用いる超短パルスのファイバデリバリーのための方法、およびシステム - Google Patents
高次モードファイバを用いる超短パルスのファイバデリバリーのための方法、およびシステム Download PDFInfo
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- 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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- H—ELECTRICITY
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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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- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
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- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2861—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using fibre optic delay lines and optical elements associated with them, e.g. for use in signal processing, e.g. filtering
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- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
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Abstract
Description
110 入力
120 第一のファイバ
122 第一のモード
130 モード変換器
140 第二のファイバ
142 第二のモード
150 出力
Claims (10)
- パルスのプリチャープをしないフェムト秒レーザパルスのための全ファイバデリバリーシステムであって、
正常分散を有する第一のファイバ、および
異常分散を有する高次モードファイバであって、前記第一のファイバの分散勾配に実質的に等しい相対的分散勾配を有する高次モードファイバを備え、
前記全ファイバデリバリーシステムが、光バルクを必要とせず、かつ結果として生じる高次モードの光を自由空間の出力として作り出すために適している、全ファイバデリバリーシステム。 - 前記全ファイバデリバリーシステムからの出力パルスが約200フェムト秒よりも短いパルスからなる、請求項1に記載の全ファイバデリバリーシステム。
- 前記出力パルスのエネルギーが約1pJと約10nJとの間にある、請求項2に記載の全ファイバデリバリーシステム。
- 線形的なパルスの伝播が生じるときに、前記第一のファイバ、および前記高次モードファイバの両方の群遅延分散が、前記全ファイバデリバリーシステムの出力において200fs未満のパルスを促進する、請求項1に記載の全ファイバデリバリーシステム。
- プリチャープをしない全ファイバデリバリーシステムであって、
レーザパルスを生成するためのモードロックされたレーザ、
正常分散を有するシングルモードファイバ、
長周期回折格子モード変換器、および
異常分散を有する高次モードファイバであって、前記第一のファイバの分散勾配に実質的に等しい相対的分散勾配を有する前記高次モードファイバを備え、
前記全ファイバデリバリーシステムが、光バルクを必要とせず、結果として生じる高次モードの光を自由空間の出力として作り出すために適し、かつ0.1から100メータにわたって200から1300nmの波長でレーザパルスを伝播する、全ファイバデリバリーシステム。 - テラヘルツ放射を生成、あるいは検知するための方法であって、
正常分散を有する第一のファイバ、および
異常分散を有する高次モードファイバであって、前記第一のファイバの分散勾配に実質的に等しい相対的分散勾配を有する高次モードファイバを備え、
光バルクを必要とせず、かつ結果として生じる高次モードの光を自由空間の出力として作り出すために適している、プリチャープをしない全ファイバデリバリーシステムを提供すること、
レーザから入力レーザパルスを生成すること、
前記入力レーザパルスを基底モードから高次モードへ伝播すること、および
約200フェムト秒よりも短い出力パルスを出力することを含み、
前記方法が、前記入力レーザパルスの何らのプリチャープを必要とせず動作する、テラヘルツ放射を生成、あるいは検知するための方法。 - それぞれの出力パルスのエネルギーが約1pJと約10nJとの間にある、請求項6に記載の方法。
- 線形的なパルスの伝播が生じるときに、前記第一のファイバ、および前記高次モードファイバの両方の群遅延分散が、前記全ファイバデリバリーシステムの出力において200fs未満のパルスを促進する、請求項6に記載の方法。
- 短い光パルスをデリバリーするための方法であって、
正常分散を有する第一のファイバ、および
異常分散を有する高次モードファイバであって、前記第一のファイバの分散勾配に実質的に等しい相対的分散勾配を有する高次モードファイバを備え、
光バルクを必要とせず、かつ結果として生じる高次モードの光を自由空間の出力として作り出すために適している、プリチャープをしない全ファイバデリバリーシステムを提供すること、
レーザから入力レーザパルスを生成すること、
前記入力レーザパルスを基底モードから高次モードへ伝播すること、および
約200フェムト秒よりも短い出力パルスを出力することを含み、
前記方法が、前記入力レーザパルスの何らのプリチャープを必要とせず動作する、短い光パルスをデリバリーするための方法。 - 前記方法がテラヘルツの放射を生成、あるいは検知する、請求項9に記載の方法。
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US201161447895P | 2011-03-01 | 2011-03-01 | |
US61/447,895 | 2011-03-01 | ||
US13/372,419 US9075243B2 (en) | 2011-03-01 | 2012-02-13 | Method and system for ultrashort pulse fiber delivery using higher order mode fiber |
US13/372,419 | 2012-02-13 | ||
PCT/US2012/027224 WO2012118937A2 (en) | 2011-03-01 | 2012-03-01 | Method and system for ultrashort pulse fiber delivery using higher order mode fiber |
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JP2016024485A Active JP6325011B2 (ja) | 2011-03-01 | 2016-02-12 | 高次モードファイバを用いる超短パルスのファイバデリバリーのための方法、およびシステム |
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US8787411B2 (en) | 2011-06-21 | 2014-07-22 | Cornell University | Mode-locked fiber laser based on narrowband optical spectral filtering and amplifier similaritons |
WO2013052968A1 (en) * | 2011-10-06 | 2013-04-11 | Ofs Fitel, Llc | Fiber designs for wavelength tunable ultra-short pulse lasers |
US9124066B2 (en) * | 2012-05-02 | 2015-09-01 | Lawrence Livermore National Security, Llc | Diffractive optical elements for transformation of modes in lasers |
CN105181155B (zh) * | 2015-10-19 | 2018-03-27 | 南开大学 | 基于单模光纤的太赫兹脉冲单次探测系统及探测方法 |
WO2017192196A2 (en) * | 2016-02-12 | 2017-11-09 | Trustees Of Boston University | Ultrashort pulse fiber laser employing raman scattering in higher order mode fibers |
CN105737984A (zh) * | 2016-04-29 | 2016-07-06 | 深圳市太赫兹系统设备有限公司 | 太赫兹时域光谱辐射与检测装置 |
CN107144545A (zh) * | 2017-06-09 | 2017-09-08 | 深圳市太赫兹科技创新研究院 | 全光纤式太赫兹时域光谱仪 |
CN108444913A (zh) * | 2018-01-30 | 2018-08-24 | 中国科学院上海技术物理研究所 | 基于单元胞立体相位光栅和互参考技术的THz光谱仪 |
EP3874325A4 (en) * | 2018-11-01 | 2022-07-27 | Ofs Fitel Llc | WAVELENGTH WUBBLE LIGHT SOURCE |
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Also Published As
Publication number | Publication date |
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WO2012118937A3 (en) | 2013-11-14 |
EP2681815A2 (en) | 2014-01-08 |
EP2681815A4 (en) | 2014-08-27 |
JP2016106421A (ja) | 2016-06-16 |
WO2012118937A2 (en) | 2012-09-07 |
JP6325011B2 (ja) | 2018-05-16 |
US20120224597A1 (en) | 2012-09-06 |
US9075243B2 (en) | 2015-07-07 |
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