Title :
New optical detector using oxide superconductor BaPb0.7Bi0.3O3
Author :
Enomoto, Youichi ; Suzuki, Minoru ; Murakami, Toshiaki
Author_Institution :
Nippon Telegraph and Telephone Public Corporation, Ibaraki, Japan
Abstract :
High-sensitive optical detectors have been fabricated by superconducting BaPb0.7Bi0.3O3(BPB) thin films Optical signals´are detected by Josephson junctions along the grain boundaries in the films. The sensitivity is one order of magnitude higher than that of conventional APDs in the present experimental wavelength range, 1.0 ∼ 2.6 µm. Therefore, this device is promising in expanding the transmission length in repeaterless submarine optical communication systems.
Keywords :
Bismuth; Grain boundaries; Josephson junctions; Optical detectors; Optical films; Optical sensors; Repeaters; Signal detection; Superconducting films; Superconducting thin films;
Conference_Titel :
Electron Devices Meeting, 1983 International
DOI :
10.1109/IEDM.1983.190548
