ES2148273T3 - Fuente de ruido optico. - Google Patents

Fuente de ruido optico.

Info

Publication number
ES2148273T3
ES2148273T3 ES94200207T ES94200207T ES2148273T3 ES 2148273 T3 ES2148273 T3 ES 2148273T3 ES 94200207 T ES94200207 T ES 94200207T ES 94200207 T ES94200207 T ES 94200207T ES 2148273 T3 ES2148273 T3 ES 2148273T3
Authority
ES
Spain
Prior art keywords
light source
path
length
optical noise
optical
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.)
Expired - Lifetime
Application number
ES94200207T
Other languages
English (en)
Inventor
Den Brink Robertus Francis Van
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.)
Koninklijke KPN NV
Original Assignee
Koninklijke KPN NV
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
Priority to NL9300347A priority Critical patent/NL9300347A/nl
Application filed by Koninklijke KPN NV filed Critical Koninklijke KPN NV
Application granted granted Critical
Publication of ES2148273T3 publication Critical patent/ES2148273T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50Transmitters

Abstract

LAS FUENTES DE RUIDO OPTICO CONOCIDAS ESTAN EQUIPADAS CON UNA FUENTE LUMINOSA Y UN FILTRO DE INTERFERENCIA, ACOPLADO OPTICAMENTE A ESTA Y BASADO EN LA DIFERENCIA DE LONGITUD DE TRAYECTORIA, PARA GENERAR UNA SEÑA DE COMPOSICION OPTICA. SI EL ESPECTRO DE UN FOTODIODO A ILUMINAR CON LA SEÑAL OPTICA HA DE SER TAN PLANO COMO POSIBLE, DICHA DIFERENCIA DE LONGITUD DE TRAYECTORIA DEBE SER CONSIDERABLEMENTE MAYOR QUE LA LONGITUD DE COHERENCIA DE LA FUENTE LUMINOSA QUE EN LA PRESENTE PRACTICA CONDUCE A DIFERENCIAS DE LONGITUD DE TRAYECTORIA AMPLIAS DESVENTAJOSAS. AL ALIMENTAR, SEGUN LA INVENCION, UNA SEÑAL DE RUIDO A LA FUENTE DE LUZ, LA LONGITUD DE COHERENCIA DE LA FUENTE DE LUZ DISMINUYE COMO RESULTADO DE LO CUAL BASTA CON USAR DIFERENCIAS DE LONGITUD DE TRAYECTORIA CONSIDERABLEMENTE MENORES.
ES94200207T 1993-02-24 1994-01-28 Fuente de ruido optico. Expired - Lifetime ES2148273T3 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL9300347A NL9300347A (nl) 1993-02-24 1993-02-24 Optische ruisbron.

Publications (1)

Publication Number Publication Date
ES2148273T3 true ES2148273T3 (es) 2000-10-16

Family

ID=19862103

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94200207T Expired - Lifetime ES2148273T3 (es) 1993-02-24 1994-01-28 Fuente de ruido optico.

Country Status (10)

Country Link
US (1) US5401955A (es)
EP (1) EP0613262B1 (es)
JP (1) JP2673490B2 (es)
AT (1) AT194253T (es)
DE (1) DE69425005T2 (es)
DK (1) DK0613262T3 (es)
ES (1) ES2148273T3 (es)
GR (1) GR3034263T3 (es)
NL (1) NL9300347A (es)
PT (1) PT613262E (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1004667C2 (nl) * 1996-12-02 1998-06-03 Nederland Ptt Optische systemen met een of meer gestabiliseerde lasersignaalbronnen.
CN108390729A (zh) * 2017-12-19 2018-08-10 湖南大学 一种带宽可控的光随机信号源产生方案

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS624899B2 (es) * 1981-06-30 1987-02-02 Nippon Electric Co
US4447117A (en) * 1982-07-06 1984-05-08 The United States Of America As Represented By The Secretary Of The Navy Gated fiber optic transmission
JPS60182238A (en) * 1984-02-29 1985-09-17 Toshiba Corp Code error supervisory system of optical receiver
GB8520827D0 (en) * 1985-08-20 1985-09-25 York Ventures & Special Optica Fibre-optic sensing devices
US5200964A (en) * 1991-03-12 1993-04-06 General Instrument Corporation Broad linewidth lasers for optical fiber communication systems

Also Published As

Publication number Publication date
JP2673490B2 (ja) 1997-11-05
JPH06268594A (ja) 1994-09-22
NL9300347A (nl) 1994-09-16
GR3034263T3 (en) 2000-12-29
PT613262E (pt) 2000-12-29
DE69425005D1 (de) 2000-08-03
EP0613262B1 (en) 2000-06-28
AT194253T (de) 2000-07-15
US5401955A (en) 1995-03-28
DK613262T3 (es)
DK0613262T3 (da) 2000-11-06
DE69425005T2 (de) 2001-03-08
EP0613262A1 (en) 1994-08-31

Similar Documents

Publication Publication Date Title
US5113325B1 (en) Light assembly kit for illuminating an article of clothing
KR970706467A (ko) 루미넌스 제어 필름(luminance control film)
KR900002099A (ko) 광원장치
KR920000369A (ko) 교반기
KR910019919A (ko) 신규한 일체식 표면 거울
KR910014583A (ko) 차창 조정기
KR880010338A (ko) 광학센서
KR860001315A (ko) 광확산기
KR910005069A (ko) 회절 렌즈
KR900013329A (ko) 야간 투시경용 헤드-업 디스플레이
DE69224690T2 (de) Sensibilisierte Er-dotierte Glasfaser als optischer Verstärker und Lichtquelle
KR870007445A (ko) 후면 투사 시스템
ES2085839T3 (es) Conjunto de espejo.
GB2256503B (en) Solid state laser diode light source
KR870007583A (ko) 내부 전반사 광도파관
FR2641422B1 (fr) Laser a barreau avec pompage optique par source a plage d'emission etroite
KR850002333A (ko) 광학 섬유증폭기
KR910010215A (ko) 콤팩트한 변배렌즈
GR3033564T3 (en) High power light source.
KR880008037A (ko) 자외선 영역에서 사용가능한 고성능 렌즈
DE69219371D1 (de) Reflektor für flächenartige Lichtquelle
FR2680907B1 (fr) Dispositif pour fournir une lumiere incidente a panneau eclaire par le bord.
CA2130590A1 (en) Optical Fiber Illumination Device
KR920001221A (ko) 면광원장치
DE69128786T2 (de) Abstimmbare Lichtquelle und faseroptische Systeme mit abstimmbarer Lichtquelle

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 613262

Country of ref document: ES