FR2275907A1 - Blocking arrangement for reflected laser beam - has semiconductor plate in path of impinging or reflected laser beam generating charge carriers - Google Patents

Blocking arrangement for reflected laser beam - has semiconductor plate in path of impinging or reflected laser beam generating charge carriers

Info

Publication number
FR2275907A1
FR2275907A1 FR7421625A FR7421625A FR2275907A1 FR 2275907 A1 FR2275907 A1 FR 2275907A1 FR 7421625 A FR7421625 A FR 7421625A FR 7421625 A FR7421625 A FR 7421625A FR 2275907 A1 FR2275907 A1 FR 2275907A1
Authority
FR
France
Prior art keywords
laser beam
reflected laser
impinging
charge carriers
reflected
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
FR7421625A
Other languages
French (fr)
Other versions
FR2275907B1 (en
Inventor
Jean-Pierre Biet
Michel Duchet
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Priority to FR7421625A priority Critical patent/FR2275907A1/en
Priority to US05/584,227 priority patent/US4003631A/en
Priority to AU81913/75A priority patent/AU487087B2/en
Priority to DE19752526402 priority patent/DE2526402A1/en
Priority to CA229,534A priority patent/CA1035028A/en
Priority to GB26039/75A priority patent/GB1488454A/en
Priority to JP50074582A priority patent/JPS5113593A/en
Priority to SE7507197A priority patent/SE7507197L/en
Publication of FR2275907A1 publication Critical patent/FR2275907A1/en
Application granted granted Critical
Publication of FR2275907B1 publication Critical patent/FR2275907B1/fr
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
    • H01S3/005—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
    • H01S3/0064—Anti-reflection devices, e.g. optical isolaters

Landscapes

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

Abstract

The reflected laser beam blocking device has a plate (3) of semiconductor material in the path of the impinging or reflected laser beams (F1, F'1) which is transparent to the impinging laser beam (F1). After this laser beam has passed through the plate, charge carriers are generated on one plate side prior to the passage of the reflected laser beam (F'1). The charge carriers are available at this plate side at the moment of impingement of the reflected laser beam on that side. The reflected beam propagates from a target axially aligned with an in opposite direction to the impinging laser beam. Preferably the charge carrier generating means contains a laser generator (4), transmitting a beam (F2) whose quantum energy exceeds the blocked bandwidth of the semiconductor material.
FR7421625A 1974-06-21 1974-06-21 Blocking arrangement for reflected laser beam - has semiconductor plate in path of impinging or reflected laser beam generating charge carriers Granted FR2275907A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7421625A FR2275907A1 (en) 1974-06-21 1974-06-21 Blocking arrangement for reflected laser beam - has semiconductor plate in path of impinging or reflected laser beam generating charge carriers
US05/584,227 US4003631A (en) 1974-06-21 1975-06-05 Device for blocking a laser beam
AU81913/75A AU487087B2 (en) 1974-06-21 1975-06-06 Device for blocking a laser beam
DE19752526402 DE2526402A1 (en) 1974-06-21 1975-06-13 BLOCKING DEVICE FOR LASER BEAM
CA229,534A CA1035028A (en) 1974-06-21 1975-06-17 Laser beam blocking device
GB26039/75A GB1488454A (en) 1974-06-21 1975-06-18 Apparatus for blocking a laser beam
JP50074582A JPS5113593A (en) 1974-06-21 1975-06-20 Reezabiimuososhisurusochi
SE7507197A SE7507197L (en) 1974-06-21 1975-06-23 DEVICE FOR BLOCKING A LASER RADIUM.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7421625A FR2275907A1 (en) 1974-06-21 1974-06-21 Blocking arrangement for reflected laser beam - has semiconductor plate in path of impinging or reflected laser beam generating charge carriers

Publications (2)

Publication Number Publication Date
FR2275907A1 true FR2275907A1 (en) 1976-01-16
FR2275907B1 FR2275907B1 (en) 1979-02-09

Family

ID=9140365

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7421625A Granted FR2275907A1 (en) 1974-06-21 1974-06-21 Blocking arrangement for reflected laser beam - has semiconductor plate in path of impinging or reflected laser beam generating charge carriers

Country Status (1)

Country Link
FR (1) FR2275907A1 (en)

Also Published As

Publication number Publication date
FR2275907B1 (en) 1979-02-09

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Legal Events

Date Code Title Description
ST Notification of lapse