JPS54103062A - Multimode optical isolator - Google Patents

Multimode optical isolator

Info

Publication number
JPS54103062A
JPS54103062A JP887478A JP887478A JPS54103062A JP S54103062 A JPS54103062 A JP S54103062A JP 887478 A JP887478 A JP 887478A JP 887478 A JP887478 A JP 887478A JP S54103062 A JPS54103062 A JP S54103062A
Authority
JP
Japan
Prior art keywords
materials
crystal
degrees
incident
inlet
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
JP887478A
Other languages
Japanese (ja)
Inventor
Takao Matsumoto
Sadakuni Shimada
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP887478A priority Critical patent/JPS54103062A/en
Publication of JPS54103062A publication Critical patent/JPS54103062A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Couplings Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE: To allow two kinds of polarized beams of an incident light to pass through two magneto-optical materials so that the transmission loss may be independent of the polarized condition of the incident light by attaching a common double refraction crystal to the inlet and outlet portions of the two magneto-optical materials having the same shape.
CONSTITUTION: Two magnetooptical materials 10 and 11, which are arranged in parallel, have their length determined such that the incident and emanating beams have polarizing directions different by 45 degrees by the magnetic field. A pair of double refraction crystals 9 and 12 are attached to the both ends thereof such that the straight line XX joining the inlet portions of the materials 10 and 11 is arranged at an angle of 45 degrees with respect to the straight line YY joining the outlet portions of the same. In the forward direction, an incident beam 8 is branched by the crystal 9 into two optical pathes of different polarization to enter the materials 10 and 11. Since the crystalline axis of the crystal 12 of the outlet portion is rotated at 45 degrees with respect to that of the crystal 9 of the inlet portion, the beam 8 emanates as the emanating light 13 after it has been composed.
COPYRIGHT: (C)1979,JPO&Japio
JP887478A 1978-01-31 1978-01-31 Multimode optical isolator Pending JPS54103062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP887478A JPS54103062A (en) 1978-01-31 1978-01-31 Multimode optical isolator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP887478A JPS54103062A (en) 1978-01-31 1978-01-31 Multimode optical isolator

Publications (1)

Publication Number Publication Date
JPS54103062A true JPS54103062A (en) 1979-08-14

Family

ID=11704822

Family Applications (1)

Application Number Title Priority Date Filing Date
JP887478A Pending JPS54103062A (en) 1978-01-31 1978-01-31 Multimode optical isolator

Country Status (1)

Country Link
JP (1) JPS54103062A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56108117U (en) * 1980-01-18 1981-08-22
US4375910A (en) * 1979-09-25 1983-03-08 Nippon Electric Co., Ltd. Optical isolator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53149046A (en) * 1977-05-31 1978-12-26 Nec Corp Optical isolator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53149046A (en) * 1977-05-31 1978-12-26 Nec Corp Optical isolator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375910A (en) * 1979-09-25 1983-03-08 Nippon Electric Co., Ltd. Optical isolator
JPS56108117U (en) * 1980-01-18 1981-08-22

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