Interband cascade distributed-feedback lasers

J. R. Meyer; C. S. Kim; M. Kim; C. L. Canedy; W. W. Bewley; J. R. Lindle; I. Vurgaftman

doi:10.1117/12.693445

2 February 2007 Interband cascade distributed-feedback lasers

J. R. Meyer, C. S. Kim, M. Kim, C. L. Canedy, W. W. Bewley, J. R. Lindle, I. Vurgaftman

Proceedings Volume 6479, Quantum Sensing and Nanophotonic Devices IV; 647916 (2007) https://doi.org/10.1117/12.693445
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

Significant recent advances in the high-temperature, high-power performance of type-II antimonide interband cascade lasers (ICLs) operating in the mid-infrared are reported. A 5-stage ICL with a 12-&mgr;m ridge width and Au electroplating for improved epitaxial-side-up heat sinking operates cw to a maximum temperature of 257 K, where the emission wavelength is 3.7 &mgr;m. A similar device with a ridge width of 22 &mgr;m emits > 260 mW per facet for cw operation at 80 K (λ = 3.4 &mgr;m) and 100 mW at 200 K (λ = 3.6 &mgr;m). Beam qualities for the narrowest ridges approach the diffraction limit. A single-mode output power of 41 mW has been obtained at T = 120 K and λ ≈ 3.44 μm from a 13-&mgr;m-wide ICL patterned with a Ge distributed-feedback grating. The side mode suppression ratio at the maximum power is 23 dB, and the linewidth of 0.1 nm is instrument-limited. An alternate contacting geometry yielded robust single-mode output over a broad range of currents and temperatures, and current tuning of the wavelength by up to 17 nm.

Citation Download Citation

J. R. Meyer, C. S. Kim, M. Kim, C. L. Canedy, W. W. Bewley, J. R. Lindle, and I. Vurgaftman "Interband cascade distributed-feedback lasers", Proc. SPIE 6479, Quantum Sensing and Nanophotonic Devices IV, 647916 (2 February 2007); https://doi.org/10.1117/12.693445

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