Patent ID: 6519385
Filing Date: 2003-02-11
Classification: G02B,H04B

Abstract:
An apparatus for phase shifting at least one of a plurality of optical signals, the apparatus comprising:an optical source for providing optical signals; a plurality of optical fibers for conveying the optical signals from said optical source, each optical fiber having a first end for receiving the optical signals and an opposed second end; an optical splitter for separately sampling the optical signals emitted by each optical fiber and for directing the sampled optical signals into combination with respective reference signals; and at least one micromanipulator for controllably positioning the second end of a respective optical fiber relative to the second ends of the other optical fibers based upon the power of the combined signals, thereby shifting the phase of the optical signals emitted by the respective optical fiber such that the optical signals emitted by each of said optical fibers have a predetermined phase relationship.