7 March 2005 Half-watt high-power single mode superluminescent LED at 1335 nm with single-facet electro-optical efficiency of 28%
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Abstract
We report on half-Watt level single spatial mode superluminescent laser diode at 1335 nm. Output optical power in excess of 500 mW from a single facet of angle-striped waveguide was realized at 10°C of heatsink temperature with peak electro-optical efficiency of 28%. To our knowledge this is the highest optical power and electro-optic conversion efficiency in a SLED device reported so far in the literature. Further optimization could lead to revolutionary result: 1) the creation of a high power optical device (SLED) with electro-optical efficiencies approaching and/or exceeding that of Fabry-Perot lasers (counting both facet outputs) with absolute optical power levels compared to that of Fabry-Perot lasers, 2) Electro-optical efficiencies approaching internal quantum efficiencies which could well exceed the 70-80% range observed in present commercial semiconductor laser and light-emitting structures.
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Oleg A. Konoplev, S. Park, Simarjeet S. Saini, Scott A. Merritt, Yimin Hu, Vince Luciani, Peter J. S. Heim, R. Enck, Dennis Bowler, "Half-watt high-power single mode superluminescent LED at 1335 nm with single-facet electro-optical efficiency of 28%", Proc. SPIE 5739, Light-Emitting Diodes: Research, Manufacturing, and Applications IX, (7 March 2005); doi: 10.1117/12.592043; https://doi.org/10.1117/12.592043
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