Abstract: A device for shifting the phase of light propagating through an optical fr, comprising a microbend transducer to bend the optical fiber. The microbend transducer comprises first and second transducer blocks each having a set of teeth positioned so that they face each other with a passageway therebetween through which the optical fiber passes and is bent by them. A device for modulating the intensity of light propagating through an optical fiber which has two tapered ends, comprising first and second mode strippers each operably attached to one of the tapered ends of the optical fiber and a microbend transducer disposed to bend the optical fiber.
Type:
Grant
Filed:
September 26, 1985
Date of Patent:
February 16, 1988
Assignee:
The United States of America as represented by the Secretary of the Navy
Abstract: A Schottky diode and method of making same in which a n+ doped layer, an n oped layer and an undoped layer of a semi-insulating material selected from the group consisting of gallium arsenide, aluminum gallium arsenide and indium phosphide is grown consecutively on a semi-insulating substrate made of the same material. A mesa with acute angled sides is etched on the undoped layer to such a depth that the n doped layer is exposed. A Schottky and ohmic contact are then deposited on opposite sides of the mesa. The exposed n layer is then bombarded with protons at normal incidence.
Type:
Grant
Filed:
September 30, 1985
Date of Patent:
February 3, 1987
Assignee:
The United States of America as represented by the Secretary of the Navy