GB1136475A - Improved laser - Google Patents

Improved laser

Info

Publication number
GB1136475A
GB1136475A GB5051265A GB5051265A GB1136475A GB 1136475 A GB1136475 A GB 1136475A GB 5051265 A GB5051265 A GB 5051265A GB 5051265 A GB5051265 A GB 5051265A GB 1136475 A GB1136475 A GB 1136475A
Authority
GB
United Kingdom
Prior art keywords
sensitizer
ions
laser
band
activator
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
GB5051265A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1136475A publication Critical patent/GB1136475A/en
Expired 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
    • H01S3/0602—Crystal lasers or glass lasers
    • H01S3/061—Crystal lasers or glass lasers with elliptical or circular cross-section and elongated shape, e.g. rod
    • 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
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/0915—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light
    • H01S3/092—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of flash lamp
    • H01S3/093—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of flash lamp focusing or directing the excitation energy into the active medium
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/17—Solid materials amorphous, e.g. glass
    • 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
    • H01S3/025—Constructional details of solid state lasers, e.g. housings or mountings
    • 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
    • H01S3/0602—Crystal lasers or glass lasers
    • H01S3/0612—Non-homogeneous structure

Abstract

1,136,475. Luminescent materials. WESTINGHOUSE ELECTRIC CORP. -29 Nov., 1965 [10 Dec., 1964], No. 50512/65. :Heading C4S. [Also in Division H1] In order to increase the pumping efficiency of a laser a sensitizer and <SP>'</SP>cosensitizer are included in the laser medium. A laser rod made from a silicate or barium glass includes Nd 2 O 3 as the laser activator, Mn<SP>+2</SP> as a sensitizer and As<SP>+3</SP>, Sb+<SP>3</SP>, Ce<SP>+3</SP>, Sn+<SP>2</SP> or Pb<SP>+2</SP> as a cosensitizer. The rod is placed in an elliptical pumping cavity with a linear pumping lamp so that when the latter is operated the Nd<SP>+3</SP> ions absorb a first narrow band of the broad band of pumping radiation, the Mn+<SP>2</SP> ions absorb a second band and re-radiate it in the first narrow band for absorption by the activator ions and the cosensitizer ions absorb a third band and reradiate it in the second narrow band for absorption by the sensitizer ions and re-radiation in the first narrow band. The glass may be a phosphate and the manganese ions may be introduced in the form of carbonates or acetates. The activator ions may be Nd<SP>+3</SP>, Pr<SP>+3</SP>, Sm<SP>+3</SP>, Eu<SP>+3</SP>, Ho<SP>+3</SP>, Er<SP>+3</SP>, Yb<SP>+3</SP>. In an alternative arrangement UO 2 <SP>+2</SP> may be used as, a sensitizer instead of Mn<SP>+2</SP> the co-sensitizers-and activator ions being the same except for the inclusion. of Tb<SP>+3</SP>, Dy<SP>+3</SP>, Tm<SP>+3</SP> as alternative activators. A -third embodiment employs Pr<SP>+3</SP>, Nd<SP>+3</SP>, Sm<SP>+3</SP>, Eu<SP>+3</SP>, Gd<SP>+3</SP>, Tb<SP>+3</SP>, Dy<SP>+3</SP> Ho<SP>+3</SP>, Er<SP>+3</SP>, Tm<SP>+3</SP>, Yb<SP>+3</SP> as activators, Ce<SP>+3</SP> as a sensitizer and Pb<SP>+2</SP>, Bi<SP>+3</SP> as co-sensitizer. The Ce<SP>+3</SP> ion may be introduced in the form of its sulphate or chloride. The -glass rod may be clad with a glass containing the sensitizer and co-sensitizer ions, Fig. 4 (not shown). A liquid laser may be used contained in a container the walls of which include the sensitizer and co-sensitizer ions. Reference has been directed by the Comptroller to Specification 1,015,057.
GB5051265A 1964-12-10 1965-11-29 Improved laser Expired GB1136475A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41732164A 1964-12-10 1964-12-10

Publications (1)

Publication Number Publication Date
GB1136475A true GB1136475A (en) 1968-12-11

Family

ID=23653485

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1236068A Expired GB1136476A (en) 1964-12-10 1965-11-29 Improved laser
GB5051265A Expired GB1136475A (en) 1964-12-10 1965-11-29 Improved laser

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1236068A Expired GB1136476A (en) 1964-12-10 1965-11-29 Improved laser

Country Status (5)

Country Link
BE (1) BE673401A (en)
CH (1) CH431747A (en)
DE (1) DE1282808B (en)
GB (2) GB1136476A (en)
NL (1) NL6516053A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931590A (en) * 1970-08-21 1976-01-06 Ppg Industries, Inc. Q-Switching device for glass lasers
US3999145A (en) * 1974-07-02 1976-12-21 Allied Chemical Corporation Optical convertor for laser systems

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3611188A (en) * 1969-05-19 1971-10-05 American Optical Corp Ytterbium laser device
US3967212A (en) * 1974-08-19 1976-06-29 Chromatix, Inc. Flash lamp pumped dye laser

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079347A (en) * 1960-10-25 1963-02-26 Bell Telephone Labor Inc Terbium and cerium activated calcium fluoride optical maser material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931590A (en) * 1970-08-21 1976-01-06 Ppg Industries, Inc. Q-Switching device for glass lasers
US3999145A (en) * 1974-07-02 1976-12-21 Allied Chemical Corporation Optical convertor for laser systems

Also Published As

Publication number Publication date
NL6516053A (en) 1966-06-13
GB1136476A (en) 1968-12-11
CH431747A (en) 1967-03-15
DE1282808B (en) 1968-11-14
BE673401A (en) 1966-04-01

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