Title:
【発明の名称】光電気変換回路
Document Type and Number:
Japanese Patent JP3062060
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide the photoelectric converting circuit which can prevent noise and distortion due to a return of a light signal reflected by a photodetection surface to the photodetection surface from increasing. SOLUTION: Light from an optical fiber 17 passes through an optical isolator 15 as shown by an arrow 19 and is photodetected by a pin photodiode 12. The optical isolator 15 does not pass the light in the opposite direction from the arrow 19, so the light reflected by the photodetection surface 13 never returns to the optical fiber 17. The light reflected by the photodetection surface is made incident on the optical fiber 17 and reflected by a reflection part such as an optical connector 18, so that it never returns to the photodetection surface, so noise and distortion due to the reflected light can be prevented from increasing.
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| JPH05504640 | [Title of Invention] Optical Fiber Lamp |
Inventors:
Satoshi Manabe
Application Number:
JP23503595A
Publication Date:
July 10, 2000
Filing Date:
September 13, 1995
Export Citation:
Assignee:
NEC
International Classes:
G02B6/42; H01L31/0232; (IPC1-7): G02B6/42; H01L31/0232
Domestic Patent References:
| JP1292917A | ||||
| JP7174933A | ||||
| JP7218778A | ||||
| JP688926A | ||||
| JP5917405U |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)