VERTICAL CAVITY SURFACE EMITTING LASER (SEMICONDUCTOR LASERS) ECE 631. INSTRUCTOR: Prof. Celal Zaim Çil Reşat ŞEKER 2013. HOW IT WORKS: Homojunction Structures.
VERTICAL CAVITY SURFACE EMITTING LASER(SEMICONDUCTOR LASERS)ECE 631
INSTRUCTOR: Prof. Celal Zaim ÇilReşat ŞEKER 2013
Semiconductor lasers are diodes which are electrically pumped. Recombination of electrons and holes created by the applied current introduces optical gain. Reflection from the ends of the crystal form an optical resonator, although the resonator can be external to the semiconductor in some designs.
Heterojunction Lasers (Quantum cascade Lasers)
- Consists of quantum structures