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GB2020013A - Semiconductor Laser Absorption Spectrometry - Google Patents

Semiconductor Laser Absorption Spectrometry

Info

Publication number
GB2020013A
GB2020013A GB7910301A GB7910301A GB2020013A GB 2020013 A GB2020013 A GB 2020013A GB 7910301 A GB7910301 A GB 7910301A GB 7910301 A GB7910301 A GB 7910301A GB 2020013 A GB2020013 A GB 2020013A
Authority
GB
United Kingdom
Prior art keywords
resonator
reflector
semiconductor laser
passive
active
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
GB7910301A
Other versions
GB2020013B (en
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.)
Jenoptik AG
Original Assignee
Jenoptik Jena GmbH
VEB Carl Zeiss Jena GmbH
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 Jenoptik Jena GmbH, VEB Carl Zeiss Jena GmbH filed Critical Jenoptik Jena GmbH
Publication of GB2020013A publication Critical patent/GB2020013A/en
Application granted granted Critical
Publication of GB2020013B publication Critical patent/GB2020013B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

An arrangement for laser spectroscopic absorption measurements comprises a semiconductor laser L having a resonator system C3 constituted by an optically active resonator c1, limited on both sides by a reflector S1, S2 and by an optically passive resonator C2 arranged adjacent the active resonator C1. The passive resonator C2 is limited on the one side by the reflector S2 of the active resonator and on the other side by a reflection grating S3. The reflection coefficient of the reflector S1, is R1 < 1, the reflection coefficient of the reflector S2 is R1 > R2 > 0, and the reflection coefficient of the reflection grating S3 is R3 > R2. The absorbing medium K to be measured is arranged in the passive resonator C2 or outside the resonator system. The detection device is arranged, either as a combination of spectrometer and registering system R, optically behind the active resonator C1, or as a registering system R only, behind the passive resonator C2. The laser may be tuned by grating S3. <IMAGE>
GB7910301A 1978-03-23 1979-03-23 Semiconductor laser absorption spectrometry Expired GB2020013B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20436778A DD143138A3 (en) 1978-03-23 1978-03-23 ARRANGEMENT FOR LASER SPECTROSCOPIC ABSORPTION DETECTION

Publications (2)

Publication Number Publication Date
GB2020013A true GB2020013A (en) 1979-11-07
GB2020013B GB2020013B (en) 1982-12-01

Family

ID=5511944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7910301A Expired GB2020013B (en) 1978-03-23 1979-03-23 Semiconductor laser absorption spectrometry

Country Status (5)

Country Link
DD (1) DD143138A3 (en)
DE (1) DE2908047A1 (en)
FR (1) FR2420744A1 (en)
GB (1) GB2020013B (en)
SU (1) SU979885A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998010496A1 (en) * 1996-09-06 1998-03-12 Feierabend Ralf Diode laser pumped multimode waveguide laser, particularly fiber laser

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3718908C1 (en) * 1987-06-05 1988-12-15 Joseph Ulrich Intracavity multimode laser spectrometer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998010496A1 (en) * 1996-09-06 1998-03-12 Feierabend Ralf Diode laser pumped multimode waveguide laser, particularly fiber laser
US6327278B1 (en) 1996-09-06 2001-12-04 Peter E. Toscheck Diode laser pumped multimode waveguide laser, particularly fiber laser

Also Published As

Publication number Publication date
DD143138A3 (en) 1980-08-06
GB2020013B (en) 1982-12-01
DE2908047A1 (en) 1979-10-04
FR2420744A1 (en) 1979-10-19
SU979885A1 (en) 1982-12-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee