1 November 2010 Loss-reduction in midinfrared photonic crystal quantum cascade lasers using metallic waveguides
Author Affiliations +
Abstract
We describe a mechanism for plasmonic loss reduction in midinfrared metallic photonic crystals and apply it to surface-plasmon quantum cascade lasers. We obtain pulsed, room-temperature operation of surface-emitting photonic crystal quantum cascade lasers operating at 7.4 µm. The photonic crystal resonator is patterned in the device top metallization, and laser operation is obtained on a band-edge mode of the photonic band structure. The emission is spectrally single mode, with a side-mode suppression ratio of 20 dB, and on-chip tunability is obtained over a wavelength range of 0.52 µm. Simulations based on a finite elements approach and on the finite-difference time-domain method allow us to study the photonic-band structure, the electromagnetic field distributions, and especially, the influence of the device parameters on the losses. The comparison between the measured and simulated far-field emission patterns and polarization proves the lasers operate on a monopolar-symmetry mode
© (2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Gangyi Xu, Gangyi Xu, Raffaele Colombelli, Raffaele Colombelli, Grégoire Beaudoin, Grégoire Beaudoin, Ludovic Largeau, Ludovic Largeau, Olivia Mauguin, Olivia Mauguin, Isabel Sagnes, Isabel Sagnes, } "Loss-reduction in midinfrared photonic crystal quantum cascade lasers using metallic waveguides," Optical Engineering 49(11), 111112 (1 November 2010). https://doi.org/10.1117/1.3516518 . Submission:
JOURNAL ARTICLE
7 PAGES


SHARE
RELATED CONTENT

FDTD modeling of chip to chip waveguide coupling via optical...
Proceedings of SPIE (September 09 2013)
Simulation of complex photonic materials and devices
Proceedings of SPIE (August 01 2004)
Quantum Cascade Photonic-Crystal Microlasers
Proceedings of SPIE (May 10 2004)

Back to Top