Simulations of surface-emitting terahertz lasers using second-order gratings are presented. Analysis shows performance superior to edge-emitting devices, with outcoupling efficiencies nearly twice as large for equal threshold gain. Grating phaseshifts produce high quality farfield profiles.
© 2005 Optical Society of America
M. Schubert and F. Rana, "Surface Emitting Terahertz Quantum Cascade Lasers," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper CTuM4.
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