Unidirectional Bistability in AlGaInAs Microring and Microdisk Semiconductor Lasers

作者：Mezosi G^*; Strain M J; Furst S; Wang Z; Yu S; Sorel M

来源：IEEE Photonics Technology Letters, 2009, 21(1-4): 88-90.

DOI：10.1109/LPT.2008.2008660

• Microdisk lasers
• microring lasers
• optical bistability
• semiconductor lasers

We report on room-temperature continuous-wave operation and single-mode lasing of microdisk and microring lasers with radii as small as 7 mu m. The waveguide sidewall roughness was minimized by an optimized fabrication process using hydrogen silsesquioxane ebeam resist and Cl(2)-CH(3)-H(2) inductively coupled plasma etching. The devices show unidirectional bistability between the counterpropagating modes for radii larger than 30 mu m and a strong hybrid output polarization for radii smaller than 15 mu m with a transverse-magnetic component of approximately 30%.

• 出版日期2009-2