Title :
AlGaAs/AlAs QW modulator for 6328 AA operation
Author :
Pezeshki, P. ; Lord, S.M. ; Boykin, T.B. ; Shoop, Barry L. ; Harris, J.S.
Author_Institution :
Solid State Labs., Stanford Univ., CA, USA
Abstract :
The first reflection measurements of an AlGaAs/AlAs quantum well modulator designed to operate at the He-Ne laser wavelength of 6328 AA are reported. Photocurrent measurements indicate large absorption changes in the QWs. The measured fractional reflectivity change of 7% was used to stabilise a He-Ne laser through negative feedback.
Keywords :
III-V semiconductors; aluminium compounds; electro-optical devices; gallium arsenide; gas lasers; helium; integrated optics; laser frequency stability; neon; optical modulation; reflectivity; semiconductor quantum wells; 6328 AA; AlGaAs-AlAs quantum well modulator; He-Ne laser stabilisation; absorption changes; fractional reflectivity change; laser wavelength; negative feedback; photocurrent; quantum confined Stark effect; reflection measurements;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19911221
