Fiber optic "T" coupler single path transceiver

Details Fiber optic "T" coupler single path transceiver Fiber optic "T" coupler single path transceiver

1997-04-24

1999-04-13

Sanghavi, Hemang

Optical waveguides

With optical coupler

Particular coupling structure

385633, 385 34, G02B 626

Patent

active

058945342

ABSTRACT:
A fiber optical "T" coupler for sending and receiving signals on the same fiber optic element to facilitate ease of building and operating fiber optic communications networks. The fiber optical "T" coupler has three GRIN lenses, a receiving GRIN lens, a transmitting GRIN lens and a focusing GRIN lens, each having a focusing end and a collimating end. The transmitting GRIN lens' and the focusing GRIN lens' collimating ends are attached to and optically connected to the collimating end of the receiving GRIN lens. Fiber optic elements can be connected to the GRIN lenses focused ends for receiving signals to be collimated or for sending focused signals from the collimated end of the GRINs. Thus a light emitting transducer sends light to the transmitting GRIN lens and through the receiving GRIN lens to a fiber optic element. The same fiber optic element brings light to the receiving GRIN lens which is optically connected to the focusing GRIN lens which focuses the light on a light detecting transducer.

REFERENCES:
patent: 4873697 (1989-10-01), Haeussler et al.
patent: 5159190 (1992-10-01), Hohberg et al.
patent: 5757994 (1998-05-01), Schoenwald et al.

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