公开(公告)号：US20170040767A1

公开(公告)日：2017-02-09

申请号：US14816166

申请日：2015-08-03

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Zenghu Chang ,  Yi Wu ,  Eric Cunningham

IPC: H01S3/06 ,  H01S3/02 ,  H01S3/16

CPC classification number: H01S5/1078 ,  H01S3/025 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/061 ,  H01S3/1625 ,  H01S3/1636 ,  H01S5/0226 ,  H01S2301/02

Abstract: Apparatus and methods that enable the suppression of amplified spontaneous emission (ASE) and prevention against parasitic lasing in cryogenically-cooled laser amplifier systems, thus allowing sustainable extraction efficiency when increasing the pump power and suitable for large-scale, high average-power laser systems employing large-aperture gain media. A gain medium having a known index of refraction for operation in an evacuated, cryogenic environment includes an ASE-absorbing epoxy composition on the perimetrical edge of the gain medium, wherein the epoxy composition has an index of refraction that substantially matches the index of refraction of the gain medium.

Abstract translation: 能够抑制放大的自发发射（ASE）和防止低温冷却激光放大器系统中的寄生激光的装置和方法，从而在增加泵浦功率并且适用于大规模，高平均功率的激光系统时可提供可持续的提取效率 采用大口径增益介质。 具有用于在抽真空的低温环境中操作的已知折射率的增益介质包括在增益介质的周边边缘上的ASE-吸收性环氧组合物，其中环氧组合物具有与折射率基本匹配的折射率 增益介质。

公开(公告)号：US09899798B2

公开(公告)日：2018-02-20

申请号：US14816166

申请日：2015-08-03

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Zenghu Chang ,  Yi Wu ,  Eric Cunningham

IPC: H01S3/16 ,  H01S3/04 ,  H01S5/10 ,  H01S3/02 ,  H01S5/022 ,  H01S3/042 ,  H01S3/06

CPC classification number: H01S5/1078 ,  H01S3/025 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/061 ,  H01S3/1625 ,  H01S3/1636 ,  H01S5/0226 ,  H01S2301/02

Abstract: Apparatus and methods that enable the suppression of amplified spontaneous emission (ASE) and prevention against parasitic lasing in cryogenically-cooled laser amplifier systems, thus allowing sustainable extraction efficiency when increasing the pump power and suitable for large-scale, high average-power laser systems employing large-aperture gain media. A gain medium having a known index of refraction for operation in an evacuated, cryogenic environment includes an ASE-absorbing epoxy composition on the perimetrical edge of the gain medium, wherein the epoxy composition has an index of refraction that substantially matches the index of refraction of the gain medium.

公开(公告)号：US10686289B2

公开(公告)日：2020-06-16

申请号：US16131825

申请日：2018-09-14

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Romain Gaume ,  Eric Cunningham ,  Shi Chen

IPC: H01S3/06 ,  H01S3/11 ,  H01S3/23 ,  H01S3/16

Abstract: A solid-state laser amplifier includes a core material providing an active gain medium. A cladding material is on the core material that is the same material as the core material that further comprises a broadband absorber material. The cladding material suppresses transverse oscillations in solid-state, single-crystal or ceramic laser amplifiers by employing a native-material, solid-state, index-matched cladding containing an appropriate broadband absorber.

公开(公告)号：US20150188275A1

公开(公告)日：2015-07-02

申请号：US14583904

申请日：2014-12-29

Applicant: University of Central Florida Research Foundation Inc.

Inventor： Zenghu Chang ,  Yi Wu ,  Eric Cunningham

IPC: H01S3/00

CPC classification number: H01S3/0057 ,  H01S3/0085 ,  H01S3/1307 ,  H01S3/2316

Abstract: The carrier-envelope phase (CEP) of a laser pulse has been shown to influence many physical processes such as pulse propagation through polar molecules, cross-phase modulation, ponderomotive surface-plasmon electron acceleration, photoemission from metallic surfaces, terahertz emission from the laser breakdown of air, above-threshold ionization, high harmonic generation, and attosecond pulse generation. Current technology does not allow for the CEP stabilization of chirped pulse amplification (CPA) systems operating at a repetition rate much lower than a kHz. The inventors disclose apparatus and methods that enable CEP control in CPA systems operating at arbitrarily-low repetition rates.

Abstract translation: 激光脉冲的载波包络相位（CEP）已经显示出影响许多物理过程，例如通过极性分子的脉冲传播，交叉相位调制，机车表面等离子体激元电子加速度，金属表面的光电子发射，激光的太赫兹发射 空气破坏，高于阈值电离，高谐波产生和阿秒脉冲产生。 目前的技术不允许CEP稳定的啁啾脉冲放大（CPA）系统以比kHz低得多的重复频率工作。 本发明人公开了能够以任意低重复率操作的CPA系统中实现CEP控制的装置和方法。

公开(公告)号：US09225137B2

公开(公告)日：2015-12-29

申请号：US14583904

申请日：2014-12-29

Applicant: University of Central Florida Research Foundation Inc.

Inventor： Zenghu Chang ,  Yi Wu ,  Eric Cunningham

IPC: H01S3/13 ,  H01S3/23 ,  H01S3/00

CPC classification number: H01S3/0057 ,  H01S3/0085 ,  H01S3/1307 ,  H01S3/2316

Abstract: The carrier-envelope phase (CEP) of a laser pulse has been shown to influence many physical processes such as pulse propagation through polar molecules, cross-phase modulation, ponderomotive surface-plasmon electron acceleration, photoemission from metallic surfaces, terahertz emission from the laser breakdown of air, above-threshold ionization, high harmonic generation, and attosecond pulse generation. Current technology does not allow for the CEP stabilization of chirped pulse amplification (CPA) systems operating at a repetition rate much lower than a kHz. The inventors disclose apparatus and methods that enable CEP control in CPA systems operating at arbitrarily-low repetition rates.

Abstract translation: 激光脉冲的载波包络相位（CEP）已经显示出影响许多物理过程，例如通过极性分子的脉冲传播，交叉相位调制，机车表面等离子体激元电子加速度，金属表面的光电子发射，激光的太赫兹发射 空气破坏，高于阈值电离，高谐波产生和阿秒脉冲产生。 目前的技术不允许CEP稳定的啁啾脉冲放大（CPA）系统以比kHz低得多的重复频率工作。 本发明人公开了能够以任意低重复率操作的CPA系统中实现CEP控制的装置和方法。