JPS559412A - Output controlling method for thin film destribution feedback laser - Google Patents

Output controlling method for thin film destribution feedback laser

Info

Publication number
JPS559412A
JPS559412A JP8149178A JP8149178A JPS559412A JP S559412 A JPS559412 A JP S559412A JP 8149178 A JP8149178 A JP 8149178A JP 8149178 A JP8149178 A JP 8149178A JP S559412 A JPS559412 A JP S559412A
Authority
JP
Japan
Prior art keywords
lay
laser
area
destribution
ultra violet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8149178A
Other languages
Japanese (ja)
Other versions
JPS5739549B2 (en
Inventor
Akihisa Matsuda
Shigeru Iijima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP8149178A priority Critical patent/JPS559412A/en
Publication of JPS559412A publication Critical patent/JPS559412A/en
Publication of JPS5739549B2 publication Critical patent/JPS5739549B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/0632—Thin film lasers in which light propagates in the plane of the thin film
    • H01S3/0635—Thin film lasers in which light propagates in the plane of the thin film provided with a periodic structure, e.g. using distributed feed-back, grating couplers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:To control output intencity of a laser by utilizing mutual action of two destribution feedback laser lays in a thin film. CONSTITUTION:Two diffraction grids 2 and 2' having two different cycles T and T' are grooved on a glass base 1. Pigment scattered areas 4 and 4' are formed by scattering luminous pigments only over the two sections where the grids are located. When an ultra violet lay 5 irradiates the area 4 and excites the pigments, the area 4 produces laser vibration by means of the destribution feedback principle, and emits a laser lay with a wave length of lambda=2nT, where n is the refractive index of a polyurethane film 3. The laser lay goes to both right and left in a light-leading wave path. Then another ultra violet lay 5' irradiates the area 4', a laser lay 7 with a wave length of lambda=2nT' is emitted. In this case when the lay is observed from the right side, the laser lay 6 is very dim and the strong laser lay 7 is observed which means that the laser lay 6 can be controlled by irradiating the ultra violet lay 5' on the area 4'. When it is observed from the left side, the reverse phenomenon can be seen. Thus the laser lay 7 is controlled by irradiating the ultra violet lay 5 on the area 4.
JP8149178A 1978-07-06 1978-07-06 Output controlling method for thin film destribution feedback laser Granted JPS559412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8149178A JPS559412A (en) 1978-07-06 1978-07-06 Output controlling method for thin film destribution feedback laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8149178A JPS559412A (en) 1978-07-06 1978-07-06 Output controlling method for thin film destribution feedback laser

Publications (2)

Publication Number Publication Date
JPS559412A true JPS559412A (en) 1980-01-23
JPS5739549B2 JPS5739549B2 (en) 1982-08-21

Family

ID=13747860

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8149178A Granted JPS559412A (en) 1978-07-06 1978-07-06 Output controlling method for thin film destribution feedback laser

Country Status (1)

Country Link
JP (1) JPS559412A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11530309B2 (en) 2017-09-29 2022-12-20 Sekisui Chemical Co., Ltd. Foamed resin molded article

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114874A (en) * 1974-07-29 1976-02-05 Hitachi Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114874A (en) * 1974-07-29 1976-02-05 Hitachi Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11530309B2 (en) 2017-09-29 2022-12-20 Sekisui Chemical Co., Ltd. Foamed resin molded article

Also Published As

Publication number Publication date
JPS5739549B2 (en) 1982-08-21

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