JPH04322228A - Optical fiber amplifier - Google Patents

Optical fiber amplifier

Info

Publication number
JPH04322228A
JPH04322228A JP9052491A JP9052491A JPH04322228A JP H04322228 A JPH04322228 A JP H04322228A JP 9052491 A JP9052491 A JP 9052491A JP 9052491 A JP9052491 A JP 9052491A JP H04322228 A JPH04322228 A JP H04322228A
Authority
JP
Japan
Prior art keywords
optical fiber
multi
mode
excite
excitation
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.)
Pending
Application number
JP9052491A
Inventor
Takeshi Ota
Original Assignee
Fuji Xerox Co Ltd
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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP9052491A priority Critical patent/JPH04322228A/en
Publication of JPH04322228A publication Critical patent/JPH04322228A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To excite an optical fiber with sufficient excitation density and to level the excitation state of the core part of a multi-mode fiber while using a coherent light source as to the optical fiber amplifier which uses a rare-earth doped multi-mode optical fiber.
CONSTITUTION: Excitation light beams from plural light sources 1a, 1b, and 1c are multiplexed by an optical multiplexer 5 and supplied to the multi-mode optical fiber 7 whose core is doped with rare earth to excite this multi-mode optical fiber. Consequently, the number of excited modes increases statistically to enable multi-mode operation.
COPYRIGHT: (C)1992,JPO&Japio
JP9052491A 1991-04-22 1991-04-22 Optical fiber amplifier Pending JPH04322228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9052491A JPH04322228A (en) 1991-04-22 1991-04-22 Optical fiber amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9052491A JPH04322228A (en) 1991-04-22 1991-04-22 Optical fiber amplifier

Publications (1)

Publication Number Publication Date
JPH04322228A true JPH04322228A (en) 1992-11-12

Family

ID=14000824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9052491A Pending JPH04322228A (en) 1991-04-22 1991-04-22 Optical fiber amplifier

Country Status (1)

Country Link
JP (1) JPH04322228A (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999054765A1 (en) * 1998-04-22 1999-10-28 Sumitomo Electric Industries, Ltd. Optical fiber, light-emitting module, and optical fiber amplifier
US8979815B2 (en) 2012-12-10 2015-03-17 The Procter & Gamble Company Absorbent articles with channels
US9060904B2 (en) 2007-06-18 2015-06-23 The Procter & Gamble Company Disposable absorbent article with sealed absorbent core with substantially continuously distributed absorbent particulate polymer material
US9066838B2 (en) 2011-06-10 2015-06-30 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9072634B2 (en) 2007-06-18 2015-07-07 The Procter & Gamble Company Disposable absorbent article with substantially continuously distributed absorbent particulate polymer material and method
US9153929B2 (en) 1998-11-25 2015-10-06 Imra America, Inc. Mode-locked multi-mode fiber laser pulse source
US9216116B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels
US9216118B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels and/or pockets
US9326896B2 (en) 2008-04-29 2016-05-03 The Procter & Gamble Company Process for making an absorbent core with strain resistant core cover
US9340363B2 (en) 2009-12-02 2016-05-17 The Procter & Gamble Company Apparatus and method for transferring particulate material
US9375358B2 (en) 2012-12-10 2016-06-28 The Procter & Gamble Company Absorbent article with high absorbent material content
US9468566B2 (en) 2011-06-10 2016-10-18 The Procter & Gamble Company Absorbent structure for absorbent articles
US9492328B2 (en) 2011-06-10 2016-11-15 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US9532910B2 (en) 2012-11-13 2017-01-03 The Procter & Gamble Company Absorbent articles with channels and signals
US9668926B2 (en) 2011-06-10 2017-06-06 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US9713557B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent article with high absorbent material content
US9713556B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent core with high superabsorbent material content
US9763835B2 (en) 2003-02-12 2017-09-19 The Procter & Gamble Company Comfortable diaper
US9789009B2 (en) 2013-12-19 2017-10-17 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US9789011B2 (en) 2013-08-27 2017-10-17 The Procter & Gamble Company Absorbent articles with channels
US9974699B2 (en) 2011-06-10 2018-05-22 The Procter & Gamble Company Absorbent core for disposable absorbent articles
US10071002B2 (en) 2013-06-14 2018-09-11 The Procter & Gamble Company Absorbent article and absorbent core forming channels when wet
US10335324B2 (en) 2014-08-25 2019-07-02 The Procter & Gamble Company Absorbent articles with channels

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6327412B1 (en) 1998-04-22 2001-12-04 Sumitomo Electric Industries, Ltd. Optical fiber, light-emitting module, and optical fiber amplifier
WO1999054765A1 (en) * 1998-04-22 1999-10-28 Sumitomo Electric Industries, Ltd. Optical fiber, light-emitting module, and optical fiber amplifier
US9595802B2 (en) 1998-11-25 2017-03-14 Imra America, Inc. Multi-mode fiber amplifier
US9570880B2 (en) 1998-11-25 2017-02-14 Imra America, Inc. Multi-mode fiber amplifier
US9153929B2 (en) 1998-11-25 2015-10-06 Imra America, Inc. Mode-locked multi-mode fiber laser pulse source
US9450371B2 (en) 1998-11-25 2016-09-20 Imra America, Inc. Mode-locked multi-mode fiber laser pulse source
US9763835B2 (en) 2003-02-12 2017-09-19 The Procter & Gamble Company Comfortable diaper
US9060904B2 (en) 2007-06-18 2015-06-23 The Procter & Gamble Company Disposable absorbent article with sealed absorbent core with substantially continuously distributed absorbent particulate polymer material
US9072634B2 (en) 2007-06-18 2015-07-07 The Procter & Gamble Company Disposable absorbent article with substantially continuously distributed absorbent particulate polymer material and method
US9241845B2 (en) 2007-06-18 2016-01-26 The Procter & Gamble Company Disposable absorbent article with sealed absorbent core with substantially continuously distributed absorbent particulate polymer material
US9326896B2 (en) 2008-04-29 2016-05-03 The Procter & Gamble Company Process for making an absorbent core with strain resistant core cover
US9340363B2 (en) 2009-12-02 2016-05-17 The Procter & Gamble Company Apparatus and method for transferring particulate material
US10004647B2 (en) 2009-12-02 2018-06-26 The Procter & Gamble Company Apparatus and method for transferring particulate material
US9974699B2 (en) 2011-06-10 2018-05-22 The Procter & Gamble Company Absorbent core for disposable absorbent articles
US9173784B2 (en) 2011-06-10 2015-11-03 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9468566B2 (en) 2011-06-10 2016-10-18 The Procter & Gamble Company Absorbent structure for absorbent articles
US9066838B2 (en) 2011-06-10 2015-06-30 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9668926B2 (en) 2011-06-10 2017-06-06 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US10245188B2 (en) 2011-06-10 2019-04-02 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US9649232B2 (en) 2011-06-10 2017-05-16 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9492328B2 (en) 2011-06-10 2016-11-15 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US9532910B2 (en) 2012-11-13 2017-01-03 The Procter & Gamble Company Absorbent articles with channels and signals
US9713557B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent article with high absorbent material content
US9713556B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent core with high superabsorbent material content
US9375358B2 (en) 2012-12-10 2016-06-28 The Procter & Gamble Company Absorbent article with high absorbent material content
US8979815B2 (en) 2012-12-10 2015-03-17 The Procter & Gamble Company Absorbent articles with channels
US9216118B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels and/or pockets
US9216116B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels
US10022280B2 (en) 2012-12-10 2018-07-17 The Procter & Gamble Company Absorbent article with high absorbent material content
US10071002B2 (en) 2013-06-14 2018-09-11 The Procter & Gamble Company Absorbent article and absorbent core forming channels when wet
US9789011B2 (en) 2013-08-27 2017-10-17 The Procter & Gamble Company Absorbent articles with channels
US9789009B2 (en) 2013-12-19 2017-10-17 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US10335324B2 (en) 2014-08-25 2019-07-02 The Procter & Gamble Company Absorbent articles with channels

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