Title :
On-chip activation of superlattice detectors via light coupled out laterally from optical fibres
Author :
Bhattacharya, P.K. ; Li, Wen-qiang ; Weinberger, D.A. ; Elliott, D.J.
Author_Institution :
University of Michigan, Solid State Electronics Laboratory, Department of Electrical Engineering & Computer Science, Ann Arbor, USA
Abstract :
A novel scheme for tapping of signals carried in optical fibres is demonstrated. Lateral holes through the fibre cladding, formed by lithography and chemical etching or laser machining, are filled with a high-index plug to allow access to the guiding region. The fibre is positioned in a groove in the active semiconductor wafer, and the holes are aligned with a row of mesa-type superlattice avalanche photodiodes which detect the optical signal.
Keywords :
avalanche photodiodes; integrated optoelectronics; optical fibres; photodetectors; semiconductor superlattices; active semiconductor wafer; avalanche photodiodes; chemical etching; fibre cladding; guiding region; high-index plug; lithography; optical fibres; superlattice detectors; tapping;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860758
