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Metal-cavity quantum-dot lasers with enhanced thermal performance |
Optics Letters, Vol. 37, Issue 16, pp. 3297-3299 (2012)
http://dx.doi.org/10.1364/OL.37.003297
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Abstract
We designed, fabricated, and characterized thermal performances of Fabry-Pérot quantum-dot lasers with both metal-coated and conventional dielectric waveguides. With proper design, metals, such as Ag, Au, Cu, and Al can function as a low loss waveguide wall as well as an efficient heat remover. Metal-cavity waveguide lasers showed excellent threshold and characteristic temperature working above 120 °C, while dielectric waveguide lasers ceased operation near 80 °C under the same conditions. The thermal analysis of these lasers showed that metal-cavity lasers have approximately 1.5 times higher thermal conductivity compared with those of the dielectric lasers. We believe that the metal-coating of waveguides and the proper selection of metal efficiently remove the heat from the active region and enable stable lasing operation at high temperature.
© 2012 Optical Society of America
OCIS Codes
(140.6810) Lasers and laser optics : Thermal effects
(230.7370) Optical devices : Waveguides
(250.5590) Optoelectronics : Quantum-well, -wire and -dot devices
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: May 3, 2012
Manuscript Accepted: June 4, 2012
Published: August 3, 2012
Citation
A. Matsudaira, C.-Y. Lu, T. O’Brien, and S. L. Chuang, "Metal-cavity quantum-dot lasers with enhanced thermal performance," Opt. Lett. 37, 3297-3299 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-16-3297
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