Substrate emission quantum cascade ring lasers with room temperature continuous wave operation

Y. Bai; S. Tsao; N. Bandyopadhyay; S. Slivken; Q. Y. Lu; M. Razeghi

doi:10.1117/12.913655

20 January 2012 Substrate emission quantum cascade ring lasers with room temperature continuous wave operation

Y. Bai, S. Tsao, N. Bandyopadhyay, S. Slivken, Q. Y. Lu, M. Razeghi

Proceedings Volume 8268, Quantum Sensing and Nanophotonic Devices IX; 82680N (2012) https://doi.org/10.1117/12.913655
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We demonstrate room temperature, continuous wave operation of quantum cascade ring lasers around 5 μm with single mode operation up to 0.51 W output power. Single mode operation persists up to 0.4 W. Light is coupled out of the ring cavity through the substrate with a second order distributed feedback grating. The substrate emission scheme allows for epilayer-down bonding, which leads to room temperature continuous wave operation. The far field analysis indicates that the device operates in a high order mode.

Citation Download Citation

Y. Bai, S. Tsao, N. Bandyopadhyay, S. Slivken, Q. Y. Lu, and M. Razeghi "Substrate emission quantum cascade ring lasers with room temperature continuous wave operation", Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 82680N (20 January 2012); https://doi.org/10.1117/12.913655

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