Rosa alignment using DC or low frequency optical source

Details Rosa alignment using DC or low frequency optical source Rosa alignment using DC or low frequency optical source

2006-11-28

2006-11-28

Connelly-Cushwa, Michelle (Department: 2874)

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

C385S090000, C385S092000

Reexamination Certificate

active

07140784

ABSTRACT:
Methods and apparatus for alignment of TO cans with photodiodes on fiber-optic receptacles. The methods and apparatus make use of direct connections to photodiodes or connections to Received Signal Strength Indicator (RSSI) outputs to align TO cans in fiber-optic receptacles. An optical source, such as a laser diode, can be powered by a low-frequency or DC source. This optical source can direct light into the fiber-optic receptacle. The TO can is manipulated in a barrel of the fiber-optic receptacle. The current through the photodiode or the RSSI output is monitored to determine when light directed into the photodiode is at a maximum or above a predetermined threshold. The TO can is fixed in the barrel when the light directed into the photodiode is at the maximum or predetermined threshold.

REFERENCES:
patent: 6265240 (2001-07-01), Dautartas et al.
patent: 6325551 (2001-12-01), Williamson, III et al.
patent: 6861641 (2005-03-01), Adams
patent: 2005/0023434 (2005-02-01), Yacoubian
patent: 2005/0163439 (2005-07-01), Vanniasinkam et al.

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