GB2332514B - Device noise measurement system - Google Patents

Device noise measurement system

Info

Publication number
GB2332514B
GB2332514B GB9908475A GB9908475A GB2332514B GB 2332514 B GB2332514 B GB 2332514B GB 9908475 A GB9908475 A GB 9908475A GB 9908475 A GB9908475 A GB 9908475A GB 2332514 B GB2332514 B GB 2332514B
Authority
GB
United Kingdom
Prior art keywords
measurement system
noise measurement
device noise
noise
measurement
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
GB9908475A
Other versions
GB9908475D0 (en
GB2332514A (en
Inventor
Michael Christopher Cox
Nigel Joseph Copner
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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
Priority claimed from GBGB9622338.3A external-priority patent/GB9622338D0/en
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB9908475A priority Critical patent/GB2332514B/en
Publication of GB9908475D0 publication Critical patent/GB9908475D0/en
Publication of GB2332514A publication Critical patent/GB2332514A/en
Application granted granted Critical
Publication of GB2332514B publication Critical patent/GB2332514B/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
    • H01S5/0014—Measuring characteristics or properties thereof
    • 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
    • H01S3/0014—Monitoring arrangements not otherwise provided for

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)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
GB9908475A 1996-10-26 1997-10-13 Device noise measurement system Expired - Fee Related GB2332514B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9908475A GB2332514B (en) 1996-10-26 1997-10-13 Device noise measurement system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9622338.3A GB9622338D0 (en) 1996-10-26 1996-10-26 Device noise measurement system
GB9908475A GB2332514B (en) 1996-10-26 1997-10-13 Device noise measurement system
PCT/GB1997/002814 WO1998019173A1 (en) 1996-10-26 1997-10-13 Device noise measurement system

Publications (3)

Publication Number Publication Date
GB9908475D0 GB9908475D0 (en) 1999-06-09
GB2332514A GB2332514A (en) 1999-06-23
GB2332514B true GB2332514B (en) 2001-02-21

Family

ID=26310293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9908475A Expired - Fee Related GB2332514B (en) 1996-10-26 1997-10-13 Device noise measurement system

Country Status (1)

Country Link
GB (1) GB2332514B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02189474A (en) * 1989-01-18 1990-07-25 Fujitsu Ltd Method and device for measuring characteristic of light receiver
US5534996A (en) * 1993-09-21 1996-07-09 Advantest Corporation Measurement apparatus for evaluating characteristics of light emitting devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02189474A (en) * 1989-01-18 1990-07-25 Fujitsu Ltd Method and device for measuring characteristic of light receiver
US5534996A (en) * 1993-09-21 1996-07-09 Advantest Corporation Measurement apparatus for evaluating characteristics of light emitting devices

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Applied Physics Letters, vol.66, no.25, 19 June 1995, pp 3149-3421 *
CSELT Technical Reports, vol.7, no.3, June 1989, pp 199-200 *
OFMC 1995 Third Optical Fibre Measuement Conference, Paper V.2/85, vol.1, 25 September 1995, pp 1-4 *
Patent Abstracts of Japan, vol.014, no.472 (P-1116) & JP 02189474 A *

Also Published As

Publication number Publication date
GB9908475D0 (en) 1999-06-09
GB2332514A (en) 1999-06-23

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20031013