GR1001297B - Μεθοδος και συσκευη ενισχυσης οπτικης διαταξης με ελεγχο του κερδους διεγερθεισας σκεδασης brillouin. - Google Patents

Μεθοδος και συσκευη ενισχυσης οπτικης διαταξης με ελεγχο του κερδους διεγερθεισας σκεδασης brillouin.

Info

Publication number
GR1001297B
GR1001297B GR880100689A GR880100689A GR1001297B GR 1001297 B GR1001297 B GR 1001297B GR 880100689 A GR880100689 A GR 880100689A GR 880100689 A GR880100689 A GR 880100689A GR 1001297 B GR1001297 B GR 1001297B
Authority
GR
Greece
Prior art keywords
gain
sbs
input
optical device
control
Prior art date
Application number
GR880100689A
Other languages
English (en)
Inventor
Dennis C Johnes
Metin S Mangir
David A Rockwell
Jeffrey O White
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of GR1001297B publication Critical patent/GR1001297B/el

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35—Non-linear optics
    • 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
    • H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
    • H01S3/305—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects in a gas
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35—Non-linear optics
    • G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
    • G02F1/3536—Four-wave interaction
    • G02F1/3538—Four-wave interaction for optical phase conjugation

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Lasers (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

Η έξοδος μιας οπτικής διατάξεως η οποία περιλαμβάνει ένα διεγερθέν μέσον κέρδους ενισχύσεως (SBS) σκεδάσεως Brillouin ενισχύεται εις μιαν περιοχήν εντάσεων δέσμης εισόδου δια δημιουργίας ενός μέσου κέρδους ενισχύσεως το οποίον έχει ένα δεδομένο κέρδος ενισχύσεως SBS δια μίαν δεδομένην έντασιν δέσμης εισόδου και τροποποίησιν του μέσου κέρδους ενισχύσεως προς ελάττωσιν του συντελεστού κέρδους ενισχύσεως SBS αυτού. Δια ελαττώσεως του συντελεστού κέρδους ενισχύσεως SBS, είναι δυνατόν να μετριασθεί η κυριαρχία του SBS και η καταστολή της διεγερθείσης σκεδάσεως RAMAN (SBS) και η πιστότης εξόδου του συστήματος συζεύξεως φάσεως εν σχέσει προς την είσοδόν του είναι δυνατόν να ενισχυθή σημαντικώς. Μηχανισμοί δια την ελάττωσιν του συντελεστού κέρδους ενισχύσεως SBS περιλαμβάνουν αύξησιν του συντελεστού ιξώδους του μέσου, της θερμικής αγωγιμότητος και/ή της διαχύσεως ή εξαναγκασμόν της ζώνης χαλαρώσεως του μέσου να συμπέση με την συχνότητα των φωνονίων τα οποία λαμβάνουν μέρος εις την διαδικασίαν SBS. Δύο διαφορετικά μέσα είναι δυνατόν να αναμιχθούν μεταξύ των εις διαφόρους αναλογίας ώστε να τροποποιήσουν προοδευτικώς την συνολικήν ενίσχυσιν κέρδους SBS του μέσου όσον μεταβάλλεται προοδευτικώς η έντασις δέσμης εισόδου. ω
GR880100689A 1987-10-21 1988-10-14 Μεθοδος και συσκευη ενισχυσης οπτικης διαταξης με ελεγχο του κερδους διεγερθεισας σκεδασης brillouin. GR1001297B (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/111,941 US4880295A (en) 1987-10-21 1987-10-21 Optical device enhancement method and apparatus by control of stimulated brillouin scattering gain

Publications (1)

Publication Number Publication Date
GR1001297B true GR1001297B (el) 1993-07-30

Family

ID=22341261

Family Applications (1)

Application Number Title Priority Date Filing Date
GR880100689A GR1001297B (el) 1987-10-21 1988-10-14 Μεθοδος και συσκευη ενισχυσης οπτικης διαταξης με ελεγχο του κερδους διεγερθεισας σκεδασης brillouin.

Country Status (12)

Country Link
US (1) US4880295A (el)
EP (1) EP0339085B1 (el)
JP (1) JPH02502046A (el)
KR (1) KR930002933B1 (el)
DE (1) DE3883375T2 (el)
EG (1) EG18564A (el)
ES (1) ES2011165A6 (el)
GR (1) GR1001297B (el)
IL (1) IL87767A (el)
NO (1) NO892573D0 (el)
TR (1) TR25278A (el)
WO (1) WO1989004009A1 (el)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5170268A (en) * 1991-11-04 1992-12-08 Rockwell International Corporation Polarization-independent energy exchange and phase conjugation
FR2696014B1 (fr) * 1992-09-18 1994-11-04 Thomson Csf Miroir à conjugaison de phase.
WO1999002310A2 (en) * 1997-07-10 1999-01-21 Avos Developments Limited Illumination for power tools
US6020990A (en) * 1998-05-11 2000-02-01 Trw Inc. R.F. signal summing using non-linear optical phase conjugation
CN116952534B (zh) * 2022-04-18 2026-03-10 中国科学院上海光学精密机械研究所 光纤系统sbs增益系数的测量装置及方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233571A (en) * 1978-09-27 1980-11-11 Hughes Aircraft Company Laser having a nonlinear phase conjugating reflector
US4529273A (en) * 1982-12-21 1985-07-16 California Institute Of Technology Passive phase conjugate mirror
US4699452A (en) * 1985-10-28 1987-10-13 American Telephone And Telegraph Company, At&T Bell Laboratories Optical communications system comprising Raman amplification means

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
APPLIED OPTICS, vol. 25, no. 7, 1st April 1986, pages 1056-1060, New York, US; Y. AOKI et al.: "Stable cw backward Raman amplification in optical fibers by stimulated Brillouin scattering suppression" *
CLAIMS SEARCHED: ALL *
PHYSICAL REVIEW A. GENERAL PHYSICS, vol. 5, no. 3, March 1972, pages 1423-1443, New York, US; W.H. LOWDERMILK et al.: "Stimulated concentration scattering in the binary-gas mixtures Xe-He and SF6-He" *

Also Published As

Publication number Publication date
DE3883375T2 (de) 1993-12-02
US4880295A (en) 1989-11-14
JPH02502046A (ja) 1990-07-05
KR890702072A (ko) 1989-12-22
DE3883375D1 (de) 1993-09-23
KR930002933B1 (ko) 1993-04-15
EP0339085A1 (en) 1989-11-02
EG18564A (en) 1993-08-30
NO892573L (no) 1989-06-21
IL87767A (en) 1993-03-15
IL87767A0 (en) 1989-02-28
ES2011165A6 (es) 1989-12-16
EP0339085B1 (en) 1993-08-18
TR25278A (tr) 1992-12-09
NO892573D0 (no) 1989-06-21
WO1989004009A1 (en) 1989-05-05

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