Title:
半導体受光素子
Document Type and Number:
Japanese Patent JP3591932
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To lower the attenuation ratio of an unnecessary wavelength compo nent without increasing the number of components by forming an optical fiber grating at part of an optical fiber inside a light receiving element module. SOLUTION: A ferrule holder 95 and a sleeve 94, and the ferrule holder 95 and a ferrule 97 are so fixed that the light emitted from the optical fiber is converged on the photoreceiving of a PD chip 91. An end surface is cut at a tilt angle of 8 deg.. Alignment is so performed that the light emitted from the optical fiber 98 forms an image right on a photodiode chip 91. Further, a bend limiter 104 is embedded in the ferrule holder 95 so as to prevent the single-mode fiber 98 from curving greatly. This is a light receiving element module which receives 1.3μm light. The PD chip itself has sensitivity even at 1.55μm. There is a fiber grating at the tip 99 of the optical fiber, so the attenuation ratio of 1.55μm light can be made low.
Inventors:
Miki Kouhara
Naoyuki Yamabayashi
Naoyuki Yamabayashi
Application Number:
JP24375995A
Publication Date:
November 24, 2004
Filing Date:
August 28, 1995
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
G02B6/42; H01L31/0232; H04B10/2507; H04B10/272; H04B10/40; H04B10/50; H04B10/60; (IPC1-7): G02B6/42; H01L31/0232; H04B10/02; H04B10/28
Domestic Patent References:
| JP6329714A | ||||
| JP4322205A | ||||
| JP4246868A | ||||
| JP7135493A | ||||
| JP2138706U | ||||
| JP396606U | ||||
| JP272563U |
Attorney, Agent or Firm:
Shigeki Kawase