CA2060287A1 - Optical amplifier - Google Patents

Optical amplifier

Info

Publication number
CA2060287A1
CA2060287A1 CA002060287A CA2060287A CA2060287A1 CA 2060287 A1 CA2060287 A1 CA 2060287A1 CA 002060287 A CA002060287 A CA 002060287A CA 2060287 A CA2060287 A CA 2060287A CA 2060287 A1 CA2060287 A1 CA 2060287A1
Authority
CA
Canada
Prior art keywords
light
fiber
amplifying
length
pump
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.)
Granted
Application number
CA002060287A
Other languages
French (fr)
Other versions
CA2060287C (en
Inventor
Thomas Pfeiffer
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.)
Alcatel Lucent NV
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2060287A1 publication Critical patent/CA2060287A1/en
Application granted granted Critical
Publication of CA2060287C publication Critical patent/CA2060287C/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
    • 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
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers
    • 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
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • H01S3/094011—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre with bidirectional pumping, i.e. with injection of the pump light from both two ends of the fibre

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Optical Communication System (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Filters (AREA)

Abstract

Pump light which, in optical amplifiers for amplifying light signals that arc transmitted in optical waveguides (4, 8), is fed through a fiber-optic coupler (5) into a light-signal-amplifying length of fiber (3) and is not completely absorbed therein, can cause problems in the transmission section.
According to the invention, the light-signal-amplifying length of fiber (3) is followed by an ytterbium-containing pump-light-absorbing length of giber (7), which has a large absorption cross-section in the wavelength range of 900-1050 ~~, in which the wavelength of the pump light coming from a laser is located.
CA002060287A 1991-01-30 1992-01-29 Optical amplifier Expired - Fee Related CA2060287C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4102648A DE4102648A1 (en) 1991-01-30 1991-01-30 OPTICAL AMPLIFIER
DEP4102648.9 1991-01-30

Publications (2)

Publication Number Publication Date
CA2060287A1 true CA2060287A1 (en) 1992-07-31
CA2060287C CA2060287C (en) 2001-07-24

Family

ID=6423958

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002060287A Expired - Fee Related CA2060287C (en) 1991-01-30 1992-01-29 Optical amplifier

Country Status (7)

Country Link
EP (1) EP0497140B1 (en)
JP (1) JP3252148B2 (en)
AT (1) ATE104094T1 (en)
AU (1) AU640073B2 (en)
CA (1) CA2060287C (en)
DE (2) DE4102648A1 (en)
ES (1) ES2055621T3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216728A (en) * 1991-06-14 1993-06-01 Corning Incorporated Optical fiber amplifier with filter
US6111306A (en) 1993-12-06 2000-08-29 Fujitsu Limited Semiconductor device and method of producing the same and semiconductor device unit and method of producing the same
DE4446524A1 (en) * 1994-12-24 1996-06-27 Sel Alcatel Ag Fiber optic amplifier
US5999673A (en) * 1994-12-28 1999-12-07 Italtel Spa Coupling arrangement between a multi-mode light source and an optical fiber through an intermediate optical fiber length
DE19647488A1 (en) * 1996-11-16 1998-05-20 Alsthom Cge Alcatel Optical amplifier for optical transmission system
DE19723267A1 (en) 1997-06-03 1998-12-10 Heidelberger Druckmasch Ag Method and arrangement for reducing the pump light at the exit of a fiber laser
JP3848327B2 (en) 2002-03-28 2006-11-22 富士通株式会社 Optical device having loss compensation function and optical amplifier for loss compensation
US7940453B2 (en) 2006-08-07 2011-05-10 Pyrophotonics Lasers Inc. Fiber amplifiers and fiber lasers with reduced out-of-band gain
CN109038189B (en) * 2018-07-27 2019-12-31 武汉光迅科技股份有限公司 Double 980 pump laser pair pump structure for EDFA

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK153791A (en) * 1991-09-02 1993-03-03 Nkt Res Center As PROCEDURE FOR COMPRESSION OF RIN IN COHESENT OPTICAL SYSTEMS, LIKE COMMUNICATION RECEIVERS

Also Published As

Publication number Publication date
AU640073B2 (en) 1993-08-12
JPH04303980A (en) 1992-10-27
ATE104094T1 (en) 1994-04-15
CA2060287C (en) 2001-07-24
ES2055621T3 (en) 1994-08-16
JP3252148B2 (en) 2002-01-28
DE4102648A1 (en) 1992-08-06
AU1037492A (en) 1992-08-06
EP0497140B1 (en) 1994-04-06
DE59200103D1 (en) 1994-05-11
EP0497140A1 (en) 1992-08-05

Similar Documents

Publication Publication Date Title
EP1102114A4 (en) Raman amplification system and optical signal transmission method using the same
HU9501071D0 (en) Amplified telecommunication system for wavelenght-diusion multiplexing transmission
CA2084217A1 (en) Dispersion compensating devices and systems
EP1225666A3 (en) High order fiber raman amplifiers
CA2020759A1 (en) Erbium-doped fiber amplifier coupling device
CA2006125A1 (en) Optical communication systems using fabry-perot cavities
EP0390002A3 (en) Optical-communication transmission system for diplex or duplex transmission
MY108522A (en) A double-core active-fiber optical amplifier having a wide-band signal wavelength.
EP0928079A4 (en) Optical transmitter
CA2057264A1 (en) Amplifier for optical fiber communication link
WO1998036294A3 (en) Pump wavelength tuning of optical amplifiers
WO1997012265A3 (en) Optical amplifier internal input monitoring signal tap
WO2001064010A3 (en) Optical amplifier and optical transmission system
CA2060287A1 (en) Optical amplifier
CA2173662A1 (en) Rare earth element-doped optical fiber amplifier
CA2091821A1 (en) Optical communications system employing fiber-optic amplifiers and control of the transmitter wavelength
EP1124149A3 (en) Optical amplifier
CA2071861A1 (en) Lossless optical component
US5170447A (en) Optical communication system with a fiber-optic amplifier
CA2035804A1 (en) Double-core, active fiber optical amplifier having a wide band signal wavelength
CA2022690A1 (en) Optical repeated transmission method and system
NZ243246A (en) Fibre optic amplifier with optical isolator to reduce noise
CA2329743A1 (en) Optical fiber, light-emitting module, and optical fiber amplifier
EP0342774A3 (en) Active optical fibre star coupler
EP0618650A3 (en) Fiber optic amplifier with device for monitoring the input power.

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed