Integrated Fiber-Optic Coupler.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1987
- Accession Number
- ADA184494
Entities
People
- E. R. Fossum
- P. R. Prucnal
Organizations
- Columbia University