Analysis of directional emission in square resonator lasers with an output waveguide
Data(s) |
2007
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Resumo |
Square microcavity laser with an output waveguide is proposed and analyzed by the finite-difference time-domain (FDTD) technique. For a square resonator with refractive index of 3.2, side length of 4 microns, and output waveguide of 0.4-micron width, we have got the quality factors (Q factors) of 6.7×10~2 and 7.3×10~3 for the fundamental and first-order transverse magnetic (TM) mode near the wavelength of 1.5 microns, respectively. The simulated intensity distribution for the first-order TM mode shows that the coupling efficiency in the waveguide reaches 53%. The numerical simulation shows that the first-order transverse modes have fairly high Q factor and high coupling efficiency to the output waveguide. Therefore the square resonator with an output waveguide is a promising candidate to realize single-mode directional emission microcavity lasers. National Natural Science Foundation of China(No.6 225 11),the Major State Basic Research Program(No.2 6CB3 28 4). |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Wei Zhao;Yongzhen Huang.Analysis of directional emission in square resonator lasers with an output waveguide,Chinese Optics Letters,2007,5(8):463-465 |
Palavras-Chave | #光电子学 |
Tipo |
期刊论文 |