Title :
Theory of cascaded quarter wave shifted distributed feedback resonators
Author :
Haus, Hermann A. ; Lai, Y.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
fDate :
1/1/1992 12:00:00 AM
Abstract :
The theory of λ/4 shifted DFB resonators, both series coupled and side coupled, is developed. The theory is limited to loss-free high-Q resonators. If the actual losses are too high, the internal losses of the structures, all of which are compatible with laser diode structures, can be compensated by gain via carrier injection. The theory of a simple transmission resonator is reviewed and extended to a side-coupled resonator
Keywords :
distributed feedback lasers; laser cavity resonators; laser theory; semiconductor junction lasers; carrier injection; cascaded quarter wave shifted distributed feedback resonators; internal losses; laser diode structures; loss-free high-Q resonators; side-coupled resonator; simple transmission resonator; theory; Distributed feedback devices; Microwave filters; Optical device fabrication; Optical feedback; Optical filters; Optical resonators; Optical waveguides; Resonance; Resonator filters; Surface acoustic waves;
Journal_Title :
Quantum Electronics, IEEE Journal of
