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GB2189073B - Laser oscillator - Google Patents
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GB2189073B - Laser oscillator - Google Patents

Laser oscillator

Info

Publication number
GB2189073B
GB2189073B GB8608947A GB8608947A GB2189073B GB 2189073 B GB2189073 B GB 2189073B GB 8608947 A GB8608947 A GB 8608947A GB 8608947 A GB8608947 A GB 8608947A GB 2189073 B GB2189073 B GB 2189073B
Authority
GB
United Kingdom
Prior art keywords
laser oscillator
oscillator
laser
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 - Fee Related
Application number
GB8608947A
Other versions
GB8608947D0 (en
GB2189073A (en
Inventor
John Edward Carroll
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.)
STC PLC
Original Assignee
STC PLC
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 STC PLC filed Critical STC PLC
Priority to GB8608947A priority Critical patent/GB2189073B/en
Publication of GB8608947D0 publication Critical patent/GB8608947D0/en
Publication of GB2189073A publication Critical patent/GB2189073A/en
Application granted granted Critical
Publication of GB2189073B publication Critical patent/GB2189073B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01S5/065—Mode locking; Mode suppression; Mode selection ; Self pulsating
    • 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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/139—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
    • 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
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/06821—Stabilising other output parameters than intensity or frequency, e.g. phase, polarisation or far-fields
    • 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
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/14—External cavity lasers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Semiconductor Lasers (AREA)
GB8608947A 1986-04-12 1986-04-12 Laser oscillator Expired - Fee Related GB2189073B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8608947A GB2189073B (en) 1986-04-12 1986-04-12 Laser oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8608947A GB2189073B (en) 1986-04-12 1986-04-12 Laser oscillator

Publications (3)

Publication Number Publication Date
GB8608947D0 GB8608947D0 (en) 1986-05-14
GB2189073A GB2189073A (en) 1987-10-14
GB2189073B true GB2189073B (en) 1990-07-04

Family

ID=10596094

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8608947A Expired - Fee Related GB2189073B (en) 1986-04-12 1986-04-12 Laser oscillator

Country Status (1)

Country Link
GB (1) GB2189073B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573156A (en) * 1983-09-16 1986-02-25 At&T Bell Laboratories Single mode laser emission
GB2178591A (en) * 1985-07-25 1987-02-11 Plessey Co Plc Laser feedback system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573156A (en) * 1983-09-16 1986-02-25 At&T Bell Laboratories Single mode laser emission
GB2178591A (en) * 1985-07-25 1987-02-11 Plessey Co Plc Laser feedback system

Also Published As

Publication number Publication date
GB8608947D0 (en) 1986-05-14
GB2189073A (en) 1987-10-14

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Legal Events

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