SE7700646L - Forsterkaranordning med fordelad aterkoppling - Google Patents

Forsterkaranordning med fordelad aterkoppling

Info

Publication number
SE7700646L
SE7700646L SE7700646A SE7700646A SE7700646L SE 7700646 L SE7700646 L SE 7700646L SE 7700646 A SE7700646 A SE 7700646A SE 7700646 A SE7700646 A SE 7700646A SE 7700646 L SE7700646 L SE 7700646L
Authority
SE
Sweden
Prior art keywords
deviations
distributed feedback
pattern
coupling strength
distributed
Prior art date
Application number
SE7700646A
Other languages
Unknown language ( )
English (en)
Other versions
SE413722B (sv
Inventor
H A Haus
C V Shank
Original Assignee
Western Electric 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 Western Electric Co filed Critical Western Electric Co
Publication of SE7700646L publication Critical patent/SE7700646L/sv
Publication of SE413722B publication Critical patent/SE413722B/sv

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
    • H01S3/0632—Thin film lasers in which light propagates in the plane of the thin film
    • H01S3/0635—Thin film lasers in which light propagates in the plane of the thin film provided with a periodic structure, e.g. using distributed feed-back, grating couplers
    • 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
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/12—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
    • 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
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/12—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
    • H01S5/124—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers incorporating phase shifts

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Semiconductor Lasers (AREA)
  • Lasers (AREA)
  • Optical Integrated Circuits (AREA)
SE7700646A 1976-02-02 1977-01-21 Inom optiska frekvensomradet arbetande anordning for stimulerad emission av stralning SE413722B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/654,339 US4096446A (en) 1976-02-02 1976-02-02 Distributed feedback devices with perturbations deviating from uniformity for removing mode degeneracy

Publications (2)

Publication Number Publication Date
SE7700646L true SE7700646L (sv) 1977-08-03
SE413722B SE413722B (sv) 1980-06-16

Family

ID=24624463

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7700646A SE413722B (sv) 1976-02-02 1977-01-21 Inom optiska frekvensomradet arbetande anordning for stimulerad emission av stralning

Country Status (10)

Country Link
US (1) US4096446A (sv)
JP (1) JPS5294794A (sv)
BE (1) BE850854A (sv)
CA (1) CA1073088A (sv)
DE (1) DE2703907C3 (sv)
FR (1) FR2339973A1 (sv)
GB (1) GB1566053A (sv)
IT (1) IT1072893B (sv)
NL (1) NL184086C (sv)
SE (1) SE413722B (sv)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4661783A (en) * 1981-03-18 1987-04-28 The United States Of America As Represented By The Secretary Of The Navy Free electron and cyclotron resonance distributed feedback lasers and masers
US4412719A (en) * 1981-04-10 1983-11-01 Environmental Research Institute Of Michigan Method and article having predetermined net reflectance characteristics
JPS60202974A (ja) * 1983-10-18 1985-10-14 Kokusai Denshin Denwa Co Ltd <Kdd> 分布帰還形半導体レ−ザ
JPH0666509B2 (ja) * 1983-12-14 1994-08-24 株式会社日立製作所 分布帰還型半導体レ−ザ装置
US4775980A (en) * 1983-12-14 1988-10-04 Hitachi, Ltd. Distributed-feedback semiconductor laser device
JPS6147685A (ja) * 1984-08-15 1986-03-08 Kokusai Denshin Denwa Co Ltd <Kdd> 分布帰還形半導体レ−ザ
JPS6189690A (ja) * 1984-10-09 1986-05-07 Fujitsu Ltd 半導体レ−ザ
US4722092A (en) * 1985-01-30 1988-01-26 Massachusetts Institute Of Technology GaInAsP/InP distributed feedback laser
US4777148A (en) * 1985-01-30 1988-10-11 Massachusetts Institute Of Technology Process for making a mesa GaInAsP/InP distributed feedback laser
US4687286A (en) * 1985-05-03 1987-08-18 Gte Laboratories Incorporated Methods of and apparatus for optical spatial scanning
JPS62144378A (ja) * 1985-12-18 1987-06-27 Sony Corp 分布帰還覆半導体レ−ザ−
US4740987A (en) * 1986-06-30 1988-04-26 American Telephone And Telegraph Company, At&T Bell Laboratories Distributed-feedback laser having enhanced mode selectivity
JP2700312B2 (ja) * 1987-01-07 1998-01-21 シャープ株式会社 分布帰還型半導体レーザ装置
JPS63244694A (ja) * 1987-03-30 1988-10-12 Sony Corp 分布帰還形半導体レ−ザ
DE3817326A1 (de) * 1988-05-20 1989-11-30 Siemens Ag Verfahren zur herstellung von gitterstrukturen mit um eine halbe gitterperiode gegeneinander versetzten abschnitten
US4905253A (en) * 1989-01-27 1990-02-27 American Telephone And Telegraph Company Distributed Bragg reflector laser for frequency modulated communication systems
US4908833A (en) * 1989-01-27 1990-03-13 American Telephone And Telegraph Company Distributed feedback laser for frequency modulated communication systems
GB8907304D0 (en) * 1989-03-31 1989-05-17 British Telecomm Distributed feedback lasers
FR2657967B1 (fr) * 1990-02-06 1992-05-22 Bertin & Cie Procede de realisation d'un reseau d'indice dans une fibre optique, et reseau de capteurs quasi-distribue forme dans cette fibre.
GB2280968B (en) * 1993-08-12 1996-07-31 Northern Telecom Ltd Chirped optical fibre filter
US6108469A (en) * 1998-11-30 2000-08-22 Lucent Technologies Inc Wavelength selective resonant gratings
US6826223B1 (en) 2003-05-28 2004-11-30 The United States Of America As Represented By The Secretary Of The Navy Surface-emitting photonic crystal distributed feedback laser systems and methods
US20130204592A1 (en) * 2010-04-05 2013-08-08 Georgia Tech Research Corporation Structural Health Monitoring Systems And Methods

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760292A (en) * 1970-12-22 1973-09-18 Bell Telephone Labor Inc Integrated feedback laser
US3795434A (en) * 1972-07-20 1974-03-05 Ibm Grating guides for optical surface waves
US3970959A (en) * 1973-04-30 1976-07-20 The Regents Of The University Of California Two dimensional distributed feedback devices and lasers
US3891302A (en) * 1973-09-28 1975-06-24 Western Electric Co Method of filtering modes in optical waveguides

Also Published As

Publication number Publication date
FR2339973A1 (fr) 1977-08-26
GB1566053A (en) 1980-04-30
US4096446A (en) 1978-06-20
SE413722B (sv) 1980-06-16
JPS5431358B2 (sv) 1979-10-06
FR2339973B1 (sv) 1980-02-08
JPS5294794A (en) 1977-08-09
DE2703907C3 (de) 1981-06-11
NL184086B (nl) 1988-11-01
CA1073088A (en) 1980-03-04
DE2703907B2 (de) 1980-08-28
NL7700858A (nl) 1977-08-04
BE850854A (fr) 1977-05-16
DE2703907A1 (de) 1977-08-04
IT1072893B (it) 1985-04-13
NL184086C (nl) 1989-04-03

Similar Documents

Publication Publication Date Title
SE7700646L (sv) Forsterkaranordning med fordelad aterkoppling
NL7611353A (nl) Lichtgeleidervezel voor het overbrengen van be- richten, waarvan de brekingsindex een gradient- profiel bezit, alsmede werkwijze voor het ver- vaardigen daarvan.
NL7511956A (nl) Werkwijze om glassoorten te bereiden uit het stel- sel mgo-cao-zno-al2o3-sio2-tio2, en werkwijze om daaruit glasvezels te vervaardigen.
DK117204C (da) Apparat til kontinuerlig fremstilling af en tynd tæppebane af glasstabelfibre.
BR7706446A (pt) Compensador de desvio de meio
AT366590B (de) Verbindungsstueck zum zusammenkoppeln von hinter- schnittene nuten und verbindungselemente in form von zapfen, leisten od. dgl. aufweisenden bau- steinen einerseits und hohlbausteinen anderseits
DE68922135D1 (de) Laser Interferometer mit optischer Rückkopplungsisolation.
IT1076429B (it) Metodo per il riordinamento di fibre in una struttura continua
NO772701L (no) Fremgangsm}te for fremstilling av fiberforsterkede sementprodukter
ATE83090T1 (de) Lasersender mit einem halbleiterlaser und einem externen optischen resonator in form eines frequenzselektiven faserrichtkopplers.
JPS5377640A (en) Axial alignment system of optical fibers
ATE31436T1 (de) Moduleinheit.
NL7700659A (nl) Werkwijze en inrichting voor het vervaardigen van vezelbanen door smeltspinnen.
JPS52142949A (en) Variable equalizer
JPS53125037A (en) Drawing method of optical fiber
JPS52127145A (en) Waveguide circuit
SU650830A1 (ru) Способ получени древесных пластиков
JPS51132738A (en) Coupling method of waveguide and cavity resonator
JPS52149415A (en) Bidirectional amplifier
BE847596A (fr) Moule pour la fabrication de plaques ou de panneaux de construction legers en fibres de bois,
JPS5269290A (en) Tuning fork type crystal resonator with temperature compensation
JPS52121334A (en) Base material for optical fibers
GB964383A (en) Improvements in crossed pin joints for double-jointed chains
JPS5372590A (en) Crystal oscillator
PL192957A1 (pl) Uklad optyczny ze zmiennym odchyleniem i zmniejszona rozbieznoscia wiazki laserowej duzej mocy

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 7700646-8

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 7700646-8

Format of ref document f/p: F