JPS55121753A - Two-way light transmitter - Google Patents

Two-way light transmitter

Info

Publication number
JPS55121753A
JPS55121753A JP2844079A JP2844079A JPS55121753A JP S55121753 A JPS55121753 A JP S55121753A JP 2844079 A JP2844079 A JP 2844079A JP 2844079 A JP2844079 A JP 2844079A JP S55121753 A JPS55121753 A JP S55121753A
Authority
JP
Japan
Prior art keywords
optical
crystal
light
electrode
modulation
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
JP2844079A
Other languages
Japanese (ja)
Other versions
JPS6159573B2 (en
Inventor
Mitsukazu Kondo
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2844079A priority Critical patent/JPS55121753A/en
Publication of JPS55121753A publication Critical patent/JPS55121753A/en
Publication of JPS6159573B2 publication Critical patent/JPS6159573B2/ja
Granted legal-status Critical Current

Links

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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2589—Bidirectional transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To obtain a two-way optical communication device featuring the small loss and wide band with use of the optical modulator in which the electrode possessing the cycle in the light transmitting direction is formed on the crystal which shows the electrical engineering effect to cause the rotation of the main shaft for the refractive index oval substance of the crystal. CONSTITUTION:The light given from light source 13 is led to optical modulator 11 via polarizing isolator 16 and then transmitted to optical fiber 9 via polarizer 15 and lens 17 after modulation by the signal given from signal generator 12. At the same time, the reception optical signal sent from fiber 9 is led to optical detector 14 via the opposite route to that mentioned above. Modulation 11 is formed by providing the inter-digital electrode onto the crystal plate 1 of lithium tantalate possessing earthed electrode 3, and the maximum conversion efficiency is obtained when the cycle lambda features the specified relation with the wavelength of the incident light.
JP2844079A 1979-03-12 1979-03-12 Two-way light transmitter Granted JPS55121753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2844079A JPS55121753A (en) 1979-03-12 1979-03-12 Two-way light transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2844079A JPS55121753A (en) 1979-03-12 1979-03-12 Two-way light transmitter

Publications (2)

Publication Number Publication Date
JPS55121753A true JPS55121753A (en) 1980-09-19
JPS6159573B2 JPS6159573B2 (en) 1986-12-17

Family

ID=12248725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2844079A Granted JPS55121753A (en) 1979-03-12 1979-03-12 Two-way light transmitter

Country Status (1)

Country Link
JP (1) JPS55121753A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60126936A (en) * 1983-12-13 1985-07-06 Matsushita Electric Ind Co Ltd Optical time-division multiplex transmitter
JPH05218977A (en) * 1991-09-06 1993-08-27 Koninkl Ptt Nederland Nv Transmission system for unpolarized-transmitting signal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6391036U (en) * 1986-12-04 1988-06-13
JPH0525478Y2 (en) * 1988-05-25 1993-06-28

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60126936A (en) * 1983-12-13 1985-07-06 Matsushita Electric Ind Co Ltd Optical time-division multiplex transmitter
JPH05218977A (en) * 1991-09-06 1993-08-27 Koninkl Ptt Nederland Nv Transmission system for unpolarized-transmitting signal

Also Published As

Publication number Publication date
JPS6159573B2 (en) 1986-12-17

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