Apparatus and method for real-time optical fiber coupling

Details Apparatus and method for real-time optical fiber coupling Apparatus and method for real-time optical fiber coupling

2006-03-07

2006-03-07

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

Reexamination Certificate

active

07008121

ABSTRACT:
The optical fiber coupling apparatus (1) for coupling light from a light-emitting device (3) into an optical fiber (4) in an optoelectronic package comprises a microactuator (8) for positioning the end of the fiber (4) with respect to the light-emitting device (3), and a control circuit (9) in which the manipulated variable is a position of the fiber end. The control circuit (9) comprises outcoupling means (41) for coupling out of the fiber (4) a well-defined portion of the light propagating through the core of the fiber (4) and a photodetector (5) for detecting the intensity of the outcoupled light portion. The controlled variable in the control circuit (9) is the light intensity detected by the photodetector (5), from which a microprocessor (6) calculates command signals for the microactuator (8). Thus, a remote control of the optical coupling without any external intervention is achieved.

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