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):

Report Date:

1987-04-01

Pagination or Media Count:

29.0

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 AW at 0.63 micron, corresponding to a quantum efficiency of 45 percent, and dark currents below 1nA. Author

Subject Categories:

  • Optics
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE