JPS5491095A - Ion laser unit - Google Patents

Ion laser unit

Info

Publication number
JPS5491095A
JPS5491095A JP15795077A JP15795077A JPS5491095A JP S5491095 A JPS5491095 A JP S5491095A JP 15795077 A JP15795077 A JP 15795077A JP 15795077 A JP15795077 A JP 15795077A JP S5491095 A JPS5491095 A JP S5491095A
Authority
JP
Japan
Prior art keywords
gas
tube
pressure
filament
gas pressure
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.)
Pending
Application number
JP15795077A
Other languages
Japanese (ja)
Inventor
Norio Takahashi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15795077A priority Critical patent/JPS5491095A/en
Publication of JPS5491095A publication Critical patent/JPS5491095A/en
Pending 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
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/036—Means for obtaining or maintaining the desired gas pressure within the tube, e.g. by gettering, replenishing; Means for circulating the gas, e.g. for equalising the pressure within the tube

Landscapes

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

Abstract

PURPOSE:To stabilize a laser output and to prolong its life by sealing a gas-pressure variation detecting filaments in a laser tube and by automatically supplying gas from a gas cylinder when detecting a decrease in gas pressure inside of the tube. CONSTITUTION:Inside of laser tube 1, filament 6 for detecting gas pressure in the tube and filament 14 for compensating the temperature inside of the sealed tube filled with gas at pressure equal to proper gas pressure inside the tube are sealed closely and power supply 9 is connected across two filaments connected in series. On the other hand, resistances 11 and 12 are connected in series and both their terminals are connected to power supply 9. Further, connection point A between filaments 6 and 14 and connection point B between resistances 11 and 12 are connected to gas supply circuit 13. When the gas pressure of laser tube 1 is adequate, difference voltage VAB between connection points A and B should be set to zero. Next, if the gas pressure of laser tube 1 decreases, the temperature of filament 6 rises and, in consequence, an increase in resistance causes a voltage difference between A and B, so that gas supply circuit 13 will supply gas from cylinder 8 by opening electromagnetic valve 7.
JP15795077A 1977-12-28 1977-12-28 Ion laser unit Pending JPS5491095A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15795077A JPS5491095A (en) 1977-12-28 1977-12-28 Ion laser unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15795077A JPS5491095A (en) 1977-12-28 1977-12-28 Ion laser unit

Publications (1)

Publication Number Publication Date
JPS5491095A true JPS5491095A (en) 1979-07-19

Family

ID=15660998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15795077A Pending JPS5491095A (en) 1977-12-28 1977-12-28 Ion laser unit

Country Status (1)

Country Link
JP (1) JPS5491095A (en)

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