Title :
A linewidth formula for semiconductor-optical fiber ring lasers
Author :
Jianping, Zhang ; Peida, Ye
Author_Institution :
Beijing Univ. of Posts & Telecommun., China
Abstract :
The authors derive a formula of linewidth for a semiconductor-optical-fiber ring laser by using coupled rate equations for the active and passive cavity. It is shown that the linewidth is not only the function of the two-cavity length ratio and time delay in fiber, but also the function of light intensity ratio of the two cavities and the phase shift introduced by junctions between the gain medium and the optical fiber.<>
Keywords :
optical fibres; ring lasers; semiconductor junction lasers; active cavity; coupled rate equations; light intensity ratio; linewidth formula; passive cavity; phase shift; semiconductor-optical fiber ring lasers; Equations; Fiber lasers; Laser modes; Optical coupling; Optical fiber couplers; Optical fibers; Optical scattering; Ring lasers; Semiconductor lasers; Semiconductor optical amplifiers;
Journal_Title :
Quantum Electronics, IEEE Journal of
