Electrically pumped photonic crystal distributed feedback quantum cascade lasers

Y. Bai; P. Sung; S. R. Darvish; W. Zhang; A. Evans; S. Slivken; M. Razeghi

doi:10.1117/12.776272

12 February 2008 Electrically pumped photonic crystal distributed feedback quantum cascade lasers

Y. Bai, P. Sung, S. R. Darvish, W. Zhang, A. Evans, S. Slivken, M. Razeghi

Proceedings Volume 6900, Quantum Sensing and Nanophotonic Devices V; 69000A (2008) https://doi.org/10.1117/12.776272
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

We demonstrate electrically pumped, room temperature, single mode operation of photonic crystal distributed feedback (PCDFB) quantum cascade lasers emitting at λ ~ 4.75 μm. Ridge waveguides of 50 μm and 100 μm width were fabricated with both PCDFB and Fabry-Perot feedback mechanisms. The Fabry-Perot device has a broad emitting spectrum and a broad far-field character. The PCDFB devices have primarily a single spectral mode and a diffraction limited far field characteristic with a full angular width at half-maximum of 4.8 degrees and 2.4 degrees for the 50 μm and 100 μm ridge widths, respectively.

Citation Download Citation

Y. Bai, P. Sung, S. R. Darvish, W. Zhang, A. Evans, S. Slivken, and M. Razeghi "Electrically pumped photonic crystal distributed feedback quantum cascade lasers", Proc. SPIE 6900, Quantum Sensing and Nanophotonic Devices V, 69000A (12 February 2008); https://doi.org/10.1117/12.776272

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