Accession Number : ADA184494

Title :   Integrated Fiber-Optic Coupler.

Descriptive Note : Annual rept. Jun 85-Jun 86,

Corporate Author : COLUMBIA UNIV NEW YORK DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Prucnal,P R ; Fossum,E R

PDF Url : ADA184494

Report Date : Apr 1987

Pagination or Media Count : 29

Abstract : This report describes a silicon photodetector structure exhibiting real-estate efficient coupling of optical fibers to semiconductors. The integrated fiber-optic coupler employs a vertical insertion of a tapered single-mode fiber into a laser-etched cylindrical hole is a semiconductor substrate. It features a small surface footprint, mechanical stability, and accurate alignment. The p-n junction detectors have typically shown responsivities of 0.23 A/W at 0.63 micron, corresponding to a quantum efficiency of 45 percent, and dark currents below 1nA. (Author)

Descriptors :   *COUPLERS, *FIBER OPTICS, *SEMICONDUCTORS, *SILICON, SUBSTRATES, N TYPE SEMICONDUCTORS, P TYPE SEMICONDUCTORS, QUANTUM EFFICIENCY

Subject Categories : Optics
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE