JPS55133017A - Light power control unit - Google Patents

Light power control unit

Info

Publication number
JPS55133017A
JPS55133017A JP4060279A JP4060279A JPS55133017A JP S55133017 A JPS55133017 A JP S55133017A JP 4060279 A JP4060279 A JP 4060279A JP 4060279 A JP4060279 A JP 4060279A JP S55133017 A JPS55133017 A JP S55133017A
Authority
JP
Japan
Prior art keywords
light power
bias voltage
modulator
controlling
transmission
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
JP4060279A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0157329B2 (enrdf_load_html_response
Inventor
Akira Ichinose
Shunji Kanamaru
Hideo Okamura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4060279A priority Critical patent/JPS55133017A/ja
Publication of JPS55133017A publication Critical patent/JPS55133017A/ja
Publication of JPH0157329B2 publication Critical patent/JPH0157329B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0121—Operation of devices; Circuit arrangements, not otherwise provided for in this subclass
    • G02F1/0123—Circuits for the control or stabilisation of the bias voltage, e.g. automatic bias control [ABC] feedback loops

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
JP4060279A 1979-04-03 1979-04-03 Light power control unit Granted JPS55133017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4060279A JPS55133017A (en) 1979-04-03 1979-04-03 Light power control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4060279A JPS55133017A (en) 1979-04-03 1979-04-03 Light power control unit

Publications (2)

Publication Number Publication Date
JPS55133017A true JPS55133017A (en) 1980-10-16
JPH0157329B2 JPH0157329B2 (enrdf_load_html_response) 1989-12-05

Family

ID=12585056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4060279A Granted JPS55133017A (en) 1979-04-03 1979-04-03 Light power control unit

Country Status (1)

Country Link
JP (1) JPS55133017A (enrdf_load_html_response)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758070A (en) * 1985-05-31 1988-07-19 Canon Kabushiki Kaisha Variable focal length lens
JPH04253023A (ja) * 1990-03-29 1992-09-08 Hughes Aircraft Co 電気・光変調器の自動バイアスコントローラ及びその制御方法。
EP0710867A3 (en) * 1994-11-04 1996-08-14 Nec Corp Optical modulation device with circuit for bias reset
EP1380874A1 (en) * 2002-07-11 2004-01-14 Agilent Technologies, Inc. - a Delaware corporation - Control loop apparatus and method therefor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758070A (en) * 1985-05-31 1988-07-19 Canon Kabushiki Kaisha Variable focal length lens
JPH04253023A (ja) * 1990-03-29 1992-09-08 Hughes Aircraft Co 電気・光変調器の自動バイアスコントローラ及びその制御方法。
EP0710867A3 (en) * 1994-11-04 1996-08-14 Nec Corp Optical modulation device with circuit for bias reset
US5742268A (en) * 1994-11-04 1998-04-21 Nec Corporation Optical modulation device having bias reset means
EP1380874A1 (en) * 2002-07-11 2004-01-14 Agilent Technologies, Inc. - a Delaware corporation - Control loop apparatus and method therefor

Also Published As

Publication number Publication date
JPH0157329B2 (enrdf_load_html_response) 1989-12-05

Similar Documents

Publication Publication Date Title
JPS5574222A (en) Temperature compensation circuit for crystal oscillator
ATE81212T1 (de) Optische modulationssysteme.
JPS55133017A (en) Light power control unit
KR970029313A (ko) 광량조정회로 및 이를 사용한 광 응용장치
JPS54140886A (en) Photo-output stabilizing circuit
JPS5490982A (en) Light output stabilizing circuit of semiconductor laser
JPS5492005A (en) Automatic modulation factor control circuit of transmitter
JPS559143A (en) Temperature detector
GB1116169A (en) Improvements in or relating to gunn effect apparatus
JPS54157644A (en) Photo logic circuit device
JPS6074593A (ja) 光出力安定化装置
GB965538A (en) Improvements in or relating to temperature stabilized apparatus
JPS5424054A (en) Object detecting device
JPS5229753A (en) Liquid crystal display
JPS53101650A (en) Switching regulator
JPS554017A (en) Photo switch
JPS6424485A (en) Semiconductor laser with external cavity
SU1103186A1 (ru) Устройство дл лучистой защиты
JPS6433976A (en) Light output changing circuit
JPS5288057A (en) Object detector
KR960027588A (ko) 마치 젠더(Mach Zehnder) 간섭계 및 패브리-페롯(Fabry-Perot) 필터의 바이어스 제어장치
JPS55107284A (en) Semiconductor laser output stabilizing method
SU418835A1 (enrdf_load_html_response)
JPS53137162A (en) Optical modulator
DE58908779D1 (de) Taktsignalschaltung.