[특허]High power regenerative laser amplifier

High power regenerative laser amplifier 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01S-003/05 H01S-003/23
출원번호	US-0822763 (1992-01-21)
발명자 / 주소	Miller John L. (Livermore CA) Hackel Lloyd A. (Livermore CA) Dane Clifford B. (Dublin CA) Zapata Luis E. (Livermore CA)
출원인 / 주소	Regents of the University of California (Oakland CA 02)
인용정보	피인용 횟수 : 19 인용 특허 : 0

초록 ▼

A regenerative amplifier design capable of operating at high energy per pulse, for instance, from 20-100 Joules, at moderate repetition rates, for instance from 5-20 Hertz is provided. The laser amplifier comprises a gain medium and source of pump energy coupled with the gain medium; a Pockels cell, which rotates an incident beam in response to application of a control signal; an optical relay system defining a first relay plane near the gain medium and a second relay plane near the rotator; and a plurality of reflectors configured to define an optical path through the gain medium, optical relay and Pockels cell, such that each transit of the optical path includes at least one pass through the gain medium and only one pass through the Pockels cell. An input coupler, and an output coupler are provided, implemented by a single polarizer. A control circuit coupled to the Pockels cell generates the control signal in timed relationship with the input pulse so that the input pulse is captured by the input coupler and proceeds through at least one transit of the optical path, and then the control signal is applied to cause rotation of the pulse to a polarization reflected by the polarizer, after which the captured pulse passes through the gain medium at least once more and is reflected out of the optical path by the polarizer before passing through the rotator again to provide an amplified pulse.

대표청구항 ▼

A laser amplifier, comprising: a gain medium; a source of pump energy coupled with the gain medium; a controllable polarization rotator; a plurality of reflectors configured to define an optical path through the gain medium and rotator, each transit of the optical path including at least one pass through the gain medium and only on pass through the rotator; telescopic relay means, mounted in the optical path, for relaying an image in the near field of the gain medium to a location in the near field of the rotator; input means for coupling an input pulse into the optical path to provide a captured pulse for regenerative amplification; and output means for coupling an amplified pulse having a predetermined polarization out of the optical path; and means, coupled with the polarization rotator, for controlling the rotator in timed relationship with the input pulse so that the captured pulse proceeds through at least one transit of the optical path, and then the rotator rotates the polarization of the pulse to the predetermined polarization, the captured pulse passes through the gain medium at least once more while having the predetermined polarization, and then is coupled out of the optical path by the output means to provide an amplified pulse, before passing through the rotator again.

이 특허를 인용한 특허 (19)

Tower, John Robertson; Andrews, James Tynan, Electron multiplication CMOS imager.
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Florentino Caesar C. ; Gupta Raj K. ; Hartlove Jeffrey S. ; Clendening ; Jr. Charles W. ; Reeve James L., Gain generator for high-energy chemical lasers.
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Hackel, Lloyd A.; Norton, Mary; Dane, C. Brent, High energy, high average power solid state green or UV laser.
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Matthews Dennis L. ; Celliers Peter M. ; Hackel Lloyd ; Da Silva Luiz B. ; Dane C. Brent ; Mrowka Stanley, High removal rate laser-based coating removal system.
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Zapata Luis E. ; Hackel Lloyd, Lamp system with conditioned water coolant and diffuse reflector of polytetrafluorethylene(PTFE).
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Dane C. Brent (Livermore CA) Hackel Lloyd A. (Livermore CA), Long-pulse-width narrow-bandwidth solid state laser.
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Dane,C. Brent; Hackel,Lloyd; Harris,Fritz B., Method for pulse control in a laser including a stimulated brillouin scattering mirror system.
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Zhang, Tong, Multipass geometry and constructions for diode-pumped solid-state lasers and fiber lasers, and for optical amplifier and detector.
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Tamaki, Yusuke; Takasago, Kazuya; Miura, Taisuke; Sekita, Hitoshi, Regenerative optical amplifier.
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Dane,C. Brent; Hackel,Lloyd; Harris,Fritz B., Relay telescope including baffle, and high power laser amplifier utilizing the same.
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Clubley, David; Bell, Angus Sutherland, Repetitively pulsed laser and amplifier with dual resonator for pulse-energy management.
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Dane,C. Brent; Hackel,Lloyd; Harris,Fritz B., Self-seeded single-frequency solid-state ring laser and system using same.
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Rodrigue Joseph Edward, Sequentially pulsed energy flow loop.
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Dane,C. Brent; Hackel,Lloyd; Harris,Fritz B., Stimulated Brillouin scattering mirror system, high power laser and laser peening method and system using same.
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Rockwell David A. (Santa Monica CA), System and method for amplification and wavefront compensation of depolarized optical beams.
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Dane,C. Brent; Hackel,Lloyd A.; Harris,Fritz, Target isolation system, high power laser and laser peening method and system using same.
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Bayramian, Andrew James; Manes, Kenneth R.; Deri, Robert; Erlandson, Alvin; Caird, John; Spaeth, Mary L., Transverse pumped laser amplifier architecture.
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Bayramian, Andrew James; Manes, Kenneth; Deri, Robert; Erlandson, Al; Caird, John; Spaeth, Mary, Transverse pumped laser amplifier architecture.
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Backus, Sterling J.; Kapteyn, Henry C.; Murnane, Margaret Mary, Ultrashort pulse amplification in cryogenically cooled amplifiers.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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High power regenerative laser amplifier 원문보기

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High power regenerative laser amplifier 원문보기

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이 특허를 인용한 특허 (19)

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