Fiber Distribution Network

Period of Performance: 01/01/1987 - 12/31/1987

$423K

Phase 2 SBIR

Recipient Firm

E-tek Dynamics, Inc.
P.O. BOX 1003
Melbourne, FL 32901
Principal Investigator

Abstract

PHASED-ARRAY ANTENNA, C(3)I, RADAR, SENSOR ARRAY, OPTICAL SIGNAL PROCESSING, AND LOCAL AREA NETWORK SYSTEMS DEMAND HIGH PERFORMANCE FIBER DISTRIBUTION COUPLERS. NO SINGLE-MODE 1XN (N > 2) FIBER COUPLER OR FABRICATION METHOD IS CURRENTLY AVAILABLE, WHICH SLOWS THE GROWTH OF USING FIBER OPTICS IN THESE SYSTEMS. E-TEK PROPOSED AN INNOVATIVE 1XN COUPLER USING GRADED-INDEX (GRIN) LENS FOR EITHER SINGLE-MODE OR MULTIMODE FIBER DISTRIBUTION NETWORK. IN ADDITION TO THE PROPOSED THEORETICAL INVESTIGATIONS, 1X12 AND 1X38 GRIN LENS COUPLERS HAVE BEEN DESIGNED, FABRICATED, AND TESTED DURING PHASE I R&D TO DEMONSTRATE FEASIBILITY AND VIABILITY. THE TEST RESULTS INDICATE THAT THE NEW COUPLERS HAVE LOW EXCESS LOSS AND LESS THAN + OR - 1 dB LOSS DEVIATION. IN PHASE II, E-TEK WOULD REFINE THE COUPLER DESIGN AND IMPROVE PERFORMANCE. 1X100 SINGLE-MODE AND 1XN (200