Star Coupler for Single Mode Fiber Communication Systems.
DEPARTMENT OF THE NAVY WASHINGTON D C
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An optical coupler system is described in which optical communications from separate centers are transmitted over separate lines of a single optical fiber to a coupler which combines the information and transmits the combined information over different single fibers to other communication centers. This invention makes use of a number of different Selfoc lenses with indefinite working distance to couple light from each of a different number of input fibers substantially evenly to a different number of output fibers. A large diameter Selfoc lens transfers incoming radiation to smaller diameter Selfoc lenses which focusses the radiation onto different single fiber transmission lines.
- Fiber Optics and Integrated Optics