RU94028977A - Scanning laser - Google Patents

Scanning laser

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Publication number
RU94028977A
RU94028977A RU94028977/25A RU94028977A RU94028977A RU 94028977 A RU94028977 A RU 94028977A RU 94028977/25 A RU94028977/25 A RU 94028977/25A RU 94028977 A RU94028977 A RU 94028977A RU 94028977 A RU94028977 A RU 94028977A
Authority
RU
Russia
Prior art keywords
laser
mirror
lens
cavity
plate
Prior art date
Application number
RU94028977/25A
Other languages
Russian (ru)
Other versions
RU2082264C1 (en
Inventor
С.А. Вицинский
В.Н. Алексеев
И.Л. Ловчий
В.Д. Дивин
Original Assignee
Научно-исследовательский институт комплексных испытаний оптико-электронных приборов и систем ВНЦ "ГОИ им.С.И.Вавилова"
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Application filed by Научно-исследовательский институт комплексных испытаний оптико-электронных приборов и систем ВНЦ "ГОИ им.С.И.Вавилова" filed Critical Научно-исследовательский институт комплексных испытаний оптико-электронных приборов и систем ВНЦ "ГОИ им.С.И.Вавилова"
Priority to RU94028977A priority Critical patent/RU2082264C1/en
Publication of RU94028977A publication Critical patent/RU94028977A/en
Application granted granted Critical
Publication of RU2082264C1 publication Critical patent/RU2082264C1/en

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  • Lasers (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

FIELD: laser distance measuring, laser devices for communication, processing, information transmission and storage, laser tools for high-precision processing. SUBSTANCE: device has semitransparent mirror, first spherical lens, which is located at focal distance from mirror, active element, second spherical lens, which is located at double focal distance from first one, reflecting mirror, which is located at focal distance from second lens, space-time light modulator, which is designed as electrically- controlled plate with linear control electrodes, which is located inside cavity in close proximity to cavity mirror. In addition device has excitation source. All said units are positioned on optical axis of cavity. Full polarization plate, which is located between cavity mirror and lens, and quarter-wave plate, which is located between cavity mirror and polarization plate, are introduced to accomplish the goal of invention. Linear control electrodes of plates of time- space light modulator are positioned at angle of 45 to pass-through plane of polarization plate. Population provides several wavelength for generation. Thickness D of quarter-wave plate conforms to equationwhere λ,λ, ... λare lengths of waves generated by laser, M,M, ... M- are integers,are refraction indices for singular and usual light beams for wavelength λ, lenses are designed as achromatic lens for working waves generated by laser. Device may be easily connected to computer. EFFECT: increased contrast, increased brightness, increased power of generation, increased functional capabilities due to possibility of by-pulse spectral encoding of scanning beam. 9 cl, 9 dwg

Claims (1)

Использование: системы лазерной локации, связи, обработки, передачи и хранения информации, а также лазерные технологические установки для высокоточной обработки материалов. Предложен сканирующий лазер, включающий расположенные на оптической оси резонатора частично пропускающее зеркало, первую сферическую линзу, установленную на фокусном расстоянии от зеркала, активный элемент, вторую сферическую линзу, установленную на двойном фокусном расстоянии от первой, полностью отражающее зеркало, установленное на фокусном расстоянии от второй линзы, пространственно-временной модулятор света, выполненный в виде внутрирезонаторной электроуправляемой пластины с линейными управляющими электродами, установленной вблизи зеркала резонатора, и источник накачки. Согласно изобретению в сканирующий лазер дополнительно введены полный поляризатор, расположенный между зеркалом резонатора и линзой, и четвертьволновая пластинка, установленная между зеркалом резонатора и поляризатором, при этом линейные управляющие электроды пластины пространственно-временного модулятора света расположены под углом 45° к плоскости пропускания поляризатора, в качестве активного элемента выбрана среда с несколькими длинами волн генерации, толщина D четвертьволновой пластинки выбрана из условия, приведенного в описании, а линзы выполнены в виде ахроматизированных объективов на рабочие длины волн генерации. Технический эффект предложенного сканирующего лазера заключается в повышении контраста и усилении яркости изображений, в повышении мощности генерации при пространственном сканировании многоспектрального лазерного излучения, а также в расширении функциональных возможностей лазера путем обеспечения поимпульсной спектральной кодировки сканируемого луча. Предложенное устройство легко совмещается с управляющей ЭВМ и с внешним координатным приемником излучения. 1 с. и 8 з.п. ф-лы, 9 ил.Usage: systems of laser location, communication, processing, transmission and storage of information, as well as laser processing systems for high-precision processing of materials. A scanning laser is proposed that includes a partially transmitting mirror located on the optical axis of the resonator, a first spherical lens mounted at a focal length from the mirror, an active element, a second spherical lens mounted at a double focal distance from the first, a fully reflecting mirror mounted at a focal length from the second lenses, a spatio-temporal light modulator, made in the form of an intracavity electrically controlled plate with linear control electrodes installed near the resonator mirror and a pump source. According to the invention, a full polarizer located between the resonator mirror and the lens and a quarter-wave plate mounted between the resonator mirror and the polarizer are additionally introduced into the scanning laser, while the linear control electrodes of the space-time light modulator plate are located at an angle of 45 ° to the transmission plane of the polarizer, as an active element, a medium with several generation wavelengths was selected, the thickness D of the quarter-wave plate was selected from the condition given in the description research, and the lenses are made in the form of achromatic lenses at the working wavelengths of generation. The technical effect of the proposed scanning laser consists in increasing the contrast and enhancing the brightness of the images, in increasing the lasing power during spatial scanning of multispectral laser radiation, as well as in expanding the functionality of the laser by providing pulse-wise spectral coding of the scanned beam. The proposed device is easily combined with a host computer and with an external coordinate radiation receiver. 1 sec and 8 z.p. f-ly, 9 ill.
RU94028977A 1994-08-02 1994-08-02 Scanning laser RU2082264C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94028977A RU2082264C1 (en) 1994-08-02 1994-08-02 Scanning laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94028977A RU2082264C1 (en) 1994-08-02 1994-08-02 Scanning laser

Publications (2)

Publication Number Publication Date
RU94028977A true RU94028977A (en) 1996-06-20
RU2082264C1 RU2082264C1 (en) 1997-06-20

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Application Number Title Priority Date Filing Date
RU94028977A RU2082264C1 (en) 1994-08-02 1994-08-02 Scanning laser

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2462810C1 (en) * 2011-06-09 2012-09-27 Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Control device of two-phase asynchronous motor in oscillating flow mode
RU2481681C1 (en) * 2011-11-24 2013-05-10 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" - Госкорпорация "Росатом" Beam scanning laser

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2563908C1 (en) * 2014-07-21 2015-09-27 Общество с ограниченной ответственностью "НАУЧНО-ТЕХНИЧЕСКИЕ ОБЪЕДИНЕНИЕ "ИРЭ-Полюс" (ООО НТО "ИРЭ-Полюс") Laser radiation distribution method and multibeam laser system therefor
RU2632745C2 (en) * 2015-08-10 2017-10-09 Владимир Валентинович Павлов Multi-beam laser radiation source and device for handling materials with its use

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2462810C1 (en) * 2011-06-09 2012-09-27 Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Control device of two-phase asynchronous motor in oscillating flow mode
RU2481681C1 (en) * 2011-11-24 2013-05-10 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" - Госкорпорация "Росатом" Beam scanning laser

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Publication number Publication date
RU2082264C1 (en) 1997-06-20

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Effective date: 20060803