Chaotic microcavity laser with high quality factor and unidirectional output
نویسندگان
چکیده
Qinghai Song, Wei Fang, Boyang Liu, Seng-Tiong Ho, Glenn S. Solomon, and Hui Cao* Department of Applied Physics, Yale University, New Haven, Connecticut 06520-8482, USA Joint Quantum Institute, NIST and University of Maryland, Gaithersburg, Maryland 20899, USA Department of Electrical Engineering and Computing Science, Northwestern University, Evanston, Illinois 60208, USA Received 31 May 2009; published 20 October 2009
منابع مشابه
Directional laser emission from a wavelength-scale chaotic microcavity.
We demonstrate directional output from a deformed disk laser of dimensions comparable to the emission wavelength. Unlike larger deformed cavity lasers, which exhibit universal output directionality determined by chaotic ray dynamics, the far-field patterns differ between lasing modes. The directional emission results from weak coupling of isotropic high-quality modes to anisotropic low-quality ...
متن کاملWhispering-gallery mode resonators for highly unidirectional laser action.
Optical microcavities can be designed to take advantage of total internal reflection, which results in resonators supporting whispering-gallery modes (WGMs) with a high-quality factor (Q factor). One of the crucial problems of these devices for practical applications such as designing microcavity lasers, however, is that their emission is nondirectional due to their radial symmetry, in addition...
متن کاملAnalysis of Steady-State Brillouin Nonlinearity in High-Power Fiber Lasers
In the present work, a theoretical analysis of the first-order of stimulatedBrillouin scattering (SBS) in a double-clad (DC) ytterbium (Yb)-doped silica fiber laserin unidirectional pumping mode is presented.An accurate simulation for calculating SBS nonlinearity is performed by considering thecoupled differential rate equations for pump, signal and Stokes powers, as wel...
متن کاملThe combination of high Q factor and chirality in twin cavities and microcavity chain
Chirality in microcavities has recently shown its bright future in optical sensing and microsized coherent light sources. The key parameters for such applications are the high quality (Q) factor and large chirality. However, the previous reported chiral resonances are either low Q modes or require very special cavity designs. Here we demonstrate a novel, robust, and general mechanism to obtain ...
متن کاملComposite Cavity Fiber Laser with Asymmetric Output Intensity and Wavelength
The composite cavity fiber laser (CCFL) is relatively simple in its fabrication, as it is essentially three wavelength matched Bragg gratings in a section of doped fiber. By using internal feedback with unequal sub-cavity lengths, unidirectional CCFLs with significantly asymmetric output power from its two outputs can be achieved. Preliminary results also show that it is possible for the lasing...
متن کامل