Optical semiconductor module, adjusting method thereof, and fabricating method thereof
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United States of America Patent
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N/A
Issued Date -
Nov 5, 2009
app pub date -
Jun 5, 2007
filing date -
Feb 9, 2006
priority date (Note) -
Abandoned
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Abstract
An optical semiconductor module has: a semiconductor laser for radiating a laser beam; a lens for converging the laser beam; and an optical connector outputting the laser beam received from the lens to a transmission path. The optical connector has: a fiber ferrule including an optical fiber with an incident plane of the laser beam; and a light attenuator covering the incident plane. Transmittance of the laser beam through the light attenuator is varied according to rotation of the light attenuator on a plane perpendicular to an optical axis. The semiconductor laser, the lens and the optical connector are aligned such that a spot diameter of the laser beam on the incident plane is smaller than a diameter of a core of the optical fiber.
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