JPS6237827B2 - - Google Patents

Info

Publication number
JPS6237827B2
JPS6237827B2 JP16995179A JP16995179A JPS6237827B2 JP S6237827 B2 JPS6237827 B2 JP S6237827B2 JP 16995179 A JP16995179 A JP 16995179A JP 16995179 A JP16995179 A JP 16995179A JP S6237827 B2 JPS6237827 B2 JP S6237827B2
Authority
JP
Japan
Prior art keywords
frequency
laser
light
diode
differential
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.)
Expired
Application number
JP16995179A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5691488A (en
Inventor
Koji Shinohara
Michiharu Ito
Hirokazu Fukuda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16995179A priority Critical patent/JPS5691488A/ja
Publication of JPS5691488A publication Critical patent/JPS5691488A/ja
Publication of JPS6237827B2 publication Critical patent/JPS6237827B2/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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/0607—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature
    • H01S5/0612—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by temperature

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Semiconductor Lasers (AREA)
JP16995179A 1979-12-25 1979-12-25 Light frequency modulation system Granted JPS5691488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16995179A JPS5691488A (en) 1979-12-25 1979-12-25 Light frequency modulation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16995179A JPS5691488A (en) 1979-12-25 1979-12-25 Light frequency modulation system

Publications (2)

Publication Number Publication Date
JPS5691488A JPS5691488A (en) 1981-07-24
JPS6237827B2 true JPS6237827B2 (OSRAM) 1987-08-14

Family

ID=15895884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16995179A Granted JPS5691488A (en) 1979-12-25 1979-12-25 Light frequency modulation system

Country Status (1)

Country Link
JP (1) JPS5691488A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0736318U (ja) * 1991-03-15 1995-07-04 貢 長谷川 直射光又は強い反射光を遮るための遮光装置を備えた電気スタンド

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0736318U (ja) * 1991-03-15 1995-07-04 貢 長谷川 直射光又は強い反射光を遮るための遮光装置を備えた電気スタンド

Also Published As

Publication number Publication date
JPS5691488A (en) 1981-07-24

Similar Documents

Publication Publication Date Title
KR100778197B1 (ko) 기체 검출 방법 및 기체 검출기 장치
CN204086105U (zh) 一种气体传感器系统
US8659759B2 (en) Laser based cavity enhanced optical absorption gas analyzer
EP1016857A2 (en) Method and apparatus for measuring light absorption spectra
WO2020238386A1 (zh) 一种痕量气体的探测方法及探测装置
JP3114959B2 (ja) ガス濃度検出方法及びその装置
CN114858354A (zh) 基于量子级联激光器的可燃气体微泄漏检测装置及方法
JPH0562832B2 (OSRAM)
JPH04151546A (ja) ガス検出装置
KR950034474A (ko) 이물검사장치 및 이물검사방법
JP2008268064A (ja) 多成分対応レーザ式ガス分析計
JPS6237827B2 (OSRAM)
KR100316487B1 (ko) 가스중의 불순물의 분광분석방법
JP2792782B2 (ja) ガス濃度測定方法およびその測定装置
Roberts et al. 13.1-High-power N 2-CO 2-He laser development
CN115615927A (zh) 一种风速和气体浓度同时监测的单光源系统和方法
US11391667B2 (en) Laser gas analyzer
Johnson Ronald Belcher Memorial Lecture. Trace gas detection using infrared lasers
CN119147501B (zh) 基于qclas的车载巡航燃气泄漏监测装置及监测方法
KR100481429B1 (ko) 반도체 다이오드 레이저 광계측 방법
KR20010053938A (ko) 광흡수 분진농도 측정방법 및 그 장치
JPS6323641U (OSRAM)
Tsai A two-line absorption instrument for scramjet temperature and water vapor concentration measurement in HYPULSE
SU1515896A1 (ru) Способ дистанционного измерени концентрации водорода в атмосфере
JPS6140335B2 (OSRAM)