Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
  • H04B10/29—Repeaters
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
  • H04B10/29—Repeaters
  • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
  • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
  • G02B6/24—Coupling light guides
  • G02B6/42—Coupling light guides with opto-electronic elements
  • G02B6/4201—Packages, e.g. shape, construction, internal or external details
  • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
  • G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
  • G02B6/4208—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback using non-reciprocal elements or birefringent plates, i.e. quasi-isolators
• • 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
  • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
  • H01S3/0064—Anti-reflection devices, e.g. optical isolaters
• • 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
  • H01S2301/00—Functional characteristics
  • H01S2301/02—ASE (amplified spontaneous emission), noise; Reduction thereof

Landscapes

• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Engineering & Computer Science (AREA)
• Optics & Photonics (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Plasma & Fusion (AREA)
• General Physics & Mathematics (AREA)
• Optical Communication System (AREA)
• Lasers (AREA)
• Light Guides In General And Applications Therefor (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=11178379

Family Applications (1)

Country Status (31)

Families Citing this family (3)

Family Cites Families (6)

• 1989
  • 1989-07-17 IT IT8921207A patent/IT1231208B/it active
• 1990
  • 1990-07-06 AT AT90112920T patent/ATE118935T1/de not_active IP Right Cessation
  • 1990-07-06 ES ES90112920T patent/ES2071705T3/es not_active Expired - Lifetime
  • 1990-07-06 DE DE69017108T patent/DE69017108T2/de not_active Expired - Fee Related
  • 1990-07-06 DK DK90112920.5T patent/DK0409012T3/da active
  • 1990-07-06 EP EP90112920A patent/EP0409012B1/en not_active Revoked
  • 1990-07-10 NZ NZ234437A patent/NZ234437A/xx unknown
  • 1990-07-12 AU AU58952/90A patent/AU634794B2/en not_active Expired
  • 1990-07-16 UA UA4830505A patent/UA24953A/uk unknown
  • 1990-07-16 FI FI903597A patent/FI903597A7/fi not_active Application Discontinuation
  • 1990-07-16 PL PL90286078A patent/PL167672B1/pl unknown
  • 1990-07-16 DD DD90342811A patent/DD301694A9/de active Search and Examination
  • 1990-07-16 NO NO903172A patent/NO303040B1/no not_active IP Right Cessation
  • 1990-07-16 IE IE258490A patent/IE67282B1/en not_active IP Right Cessation
  • 1990-07-16 KR KR1019900010776A patent/KR0177147B1/ko not_active Expired - Fee Related
  • 1990-07-16 AR AR90317376A patent/AR242686A1/es active
  • 1990-07-16 CA CA002021281A patent/CA2021281C/en not_active Expired - Lifetime
  • 1990-07-16 RU SU904830505A patent/RU2025757C1/ru active
  • 1990-07-16 HU HU904221A patent/HU210859B/hu not_active IP Right Cessation
  • 1990-07-17 SK SK3536-90A patent/SK280814B6/sk unknown
  • 1990-07-17 CN CN90104609A patent/CN1015840B/zh not_active Expired
  • 1990-07-17 MX MX021622A patent/MX173807B/es unknown
  • 1990-07-17 JP JP2189289A patent/JPH03101718A/ja active Pending
  • 1990-07-17 CZ CS903536A patent/CZ281336B6/cs not_active IP Right Cessation
  • 1990-07-17 PE PE1990172304A patent/PE33590A1/es not_active Application Discontinuation
  • 1990-07-17 BR BR909003541A patent/BR9003541A/pt unknown
  • 1990-07-17 PT PT94717A patent/PT94717B/pt not_active IP Right Cessation
• 1991
  • 1991-12-12 ID IDP22091A patent/ID1039B/id unknown
• 1993
  • 1993-06-30 LV LVP-93-831A patent/LV10818B/en unknown
  • 1993-12-15 LT LTIP1608A patent/LT3573B/lt not_active IP Right Cessation
• 1997
  • 1997-12-27 HK HK97102627A patent/HK1000979A1/en not_active IP Right Cessation

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