Title :
Solid state wavemeter with InGaAsP/InGaAs two-diode heterostructure
Author :
Colace, L. ; Masini, G. ; Assanto, G.
Author_Institution :
Dept. of Electron. Eng., Rome Univ., Italy
fDate :
7/4/2002 12:00:00 AM
Abstract :
A novel photodetector with wavemeter capability in the near infrared is demonstrated. The device is an InGaAsP/InGaAs double heterostructure operating as two back-to-back photodiodes with different spectral responses. This prototype is able to determine monochromatic-light wavelengths with an accuracy of ±40 pm around 1.55 μm and a sensitivity of about 0.14 μA/nm
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; photodetectors; photodiodes; semiconductor heterojunctions; wavemeters; 1.55 micron; InGaAsP-InGaAs; InGaAsP/InGaAs double heterostructure; near infrared detection; photodetector; photodiode; solid-state wavemeter; spectral response;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020525
