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Proceedings Paper

Highly sensitive and wideband optical detector in patterned YBa2Cu3O7-d thin film
Author(s): Ken'ichi Tanaka; Yuichi Harada; Martin Danerud; Matsuo Sekine; Motoichi Ohtsu
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Paper Abstract

We have demonstrated an optical detector based on patterned YBa2Cu3O7-(delta ) thin films. The responses up to 18 GHz were observed using two wavelength lasers. The amplitude of the light was modulated up to 18 GHz by an optical heterodyne mixing system. The responsivity of the detectors is over 50 V/W for different wavelength lasers below 1 Hz and the responsivity is 4 mV/W at the 780 nm wavelength and 30 mV/W at 1.5 micrometers in the region from 3 GHz to 18 GHz. Our detector is one of the promising candidates for highly sensitive and wideband optical receiver.

Paper Details

Date Published: 15 April 1997
PDF: 10 pages
Proc. SPIE 2999, Photodetectors: Materials and Devices II, (15 April 1997); doi: 10.1117/12.271202
Show Author Affiliations
Ken'ichi Tanaka, Tokyo Institute of Technology (Japan)
Yuichi Harada, NTT Basic Research Labs. (Japan)
Martin Danerud, Chalmers Univ. of Technology (Sweden)
Matsuo Sekine, Tokyo Institute of Technology (Japan)
Motoichi Ohtsu, Tokyo Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 2999:
Photodetectors: Materials and Devices II
Gail J. Brown; Manijeh Razeghi, Editor(s)

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