JPS5588030A - Photo branching method - Google Patents

Photo branching method

Info

Publication number
JPS5588030A
JPS5588030A JP16266978A JP16266978A JPS5588030A JP S5588030 A JPS5588030 A JP S5588030A JP 16266978 A JP16266978 A JP 16266978A JP 16266978 A JP16266978 A JP 16266978A JP S5588030 A JPS5588030 A JP S5588030A
Authority
JP
Japan
Prior art keywords
acousto
optic element
transmission line
photo detecting
line fiber
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.)
Pending
Application number
JP16266978A
Other languages
Japanese (ja)
Inventor
Hideo Segawa
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP16266978A priority Critical patent/JPS5588030A/en
Publication of JPS5588030A publication Critical patent/JPS5588030A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To achieve the improvement in efficiency and branching characteristics by making use of branching characteristics of an acousto-optic element. CONSTITUTION:An acousto-optic element 7 composed of glass, TeO2, PbMoO4 or the like of good transmission characteristics in the 8000Angstrom band being the oscillation wavelength of GaAs base semiconductor lasers is disposed between a transmission line fiber 9 and photo detecting fibers F1-Fn. With this arrangement, the beam LB as the light wavelength multiple signal emitted divergently from the transmission line fiber 9 is paralleled by a collimate lens 3, after which the beams enter the acousto-optic element 7, where they are diffracted at the Bragg diffraction angles determined by the frequencies, etc. of the driving signal S inputted from a power amplifier 8 and are branched according to their wavelength components to become branched beams LB1-LBn which are then entered to the photo detecting fibers F1-Fn through a focusing lens 5.
JP16266978A 1978-12-26 1978-12-26 Photo branching method Pending JPS5588030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16266978A JPS5588030A (en) 1978-12-26 1978-12-26 Photo branching method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16266978A JPS5588030A (en) 1978-12-26 1978-12-26 Photo branching method

Publications (1)

Publication Number Publication Date
JPS5588030A true JPS5588030A (en) 1980-07-03

Family

ID=15759022

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16266978A Pending JPS5588030A (en) 1978-12-26 1978-12-26 Photo branching method

Country Status (1)

Country Link
JP (1) JPS5588030A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5729005A (en) * 1980-07-30 1982-02-16 Nippon Telegr & Teleph Corp <Ntt> Optical branching filter
US4432599A (en) * 1981-03-27 1984-02-21 Sperry Corporation Fiber optic differential sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215556A (en) * 1975-07-29 1977-02-05 Fuji Photo Film Co Ltd Method of producing thermoplastic polymer sheet
JPS53135A (en) * 1976-06-24 1978-01-05 Mitsubishi Electric Corp Beam splitter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215556A (en) * 1975-07-29 1977-02-05 Fuji Photo Film Co Ltd Method of producing thermoplastic polymer sheet
JPS53135A (en) * 1976-06-24 1978-01-05 Mitsubishi Electric Corp Beam splitter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5729005A (en) * 1980-07-30 1982-02-16 Nippon Telegr & Teleph Corp <Ntt> Optical branching filter
US4432599A (en) * 1981-03-27 1984-02-21 Sperry Corporation Fiber optic differential sensor

Similar Documents

Publication Publication Date Title
JPS5360651A (en) Semiconductor laser with optical fibers
EP0342836A3 (en) Beam combining unit
JPS54134456A (en) Semiconductor laser light source
JPS5588030A (en) Photo branching method
JPS5737893A (en) Semiconductor laser
GB1517537A (en) Lasers and photo-detectors
JPS51149034A (en) Propagation mode converting optical coupler
JPS6455746A (en) Optical pickup device
JPS5590984A (en) Making method of multibranching hologram photo coupler
JPS55126208A (en) Light emitting semiconductor device
JPS56162554A (en) Optical amplifying repeater
JPS5769794A (en) Waveguide type laser device
JPS53135A (en) Beam splitter
JPS5347851A (en) Coupling element for optical branching
JPS57131024A (en) Measuring device for laser energy
JPS5583010A (en) Optical fiber for co2 laser surgical knife
JPS5533127A (en) Photo coupler
JPS6429877A (en) Energy modulating device for semiconductor laser
JPS5690642A (en) Optical communication system
JPS5720704A (en) Apparatus for light branching circuit
JPS5472068A (en) Optical processor
JPS6472581A (en) Semiconductor laser device
JPS5621113A (en) Light isolator coupler
JPS54148545A (en) Branching mixer for optical transmission
JPS55121403A (en) Photo multiplexing lens and branching and coupling device