Title :
Voltage-controlled distributed Bragg reflectors for modulation and integrated power monitoring of vertical-cavity surface-emitting lasers
Author :
Khan, Ajmal ; Woodbridge, Karl ; Marinopoulou, A. ; Roberts, Clive ; Parry, Guillaume
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London
fDate :
12/8/1994 12:00:00 AM
Abstract :
The authors demonstrate a voltage-controlled distributed Bragg reflector with a very high off-state reflectivity and low-voltage operation suitable for use within a vertical-cavity surface-emitting laser. The unbiased peak reflectivity approaches 99.8% at 980 nm, which may be modulated through the quantum-confined Stark effect by 1%. The mirror allows measurement of photocurrent to monitor VCSEL output power
Keywords :
electro-optical modulation; laser cavity resonators; laser mirrors; photoconductivity; quantum confined Stark effect; reflectivity; semiconductor lasers; surface emitting lasers; 980 nm; VCSEL output power; integrated power monitoring; low-voltage operation; mirror; modulation; photocurrent; quantum-confined Stark effect; unbiased peak reflectivity; vertical-cavity surface-emitting laser; vertical-cavity surface-emitting lasers; very high off-state reflectivity; voltage-controlled distributed Bragg reflectors;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941484
