Module for transmitting and receiving optical signal based on optical fiber having slanted surface and method of manufacturing the same
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United States of America Patent
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app pub date -
Aug 10, 2005
filing date -
Mar 5, 2004
priority date (Note) -
Abandoned
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Abstract
A module for transmitting and receiving optical signals based on an optical fiber with a slanted surface at an end is disclosed. The module includes, on a semiconductor substrate, a laser diode and a photodiode optically combined to the optical fiber. On the substrate, a surface-mounted laser diode; an optical fiber guided and installed in a groove to face with the laser diode, and having a slanted surface at an end; and a photodiode surface-mounted to place an optical activation region right below a horizontal projection plane of the slanted surface are provided. The slanted surface has an optical fiber coating layer for transmitting a transmitted signal output from the laser diode to the optical fiber and reflecting a received signal input from outside through the optical fiber. This module may have reduced dimensions, reduce manufacturing costs and time during packaging, and ensure high reliability by simple optical axis alignment.
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