Title :
Phase-locked arrays of surface-emitting terahertz quantum-cascade lasers
Author :
Kao, Tsung-Yu ; Hu, Qing ; Reno, John L.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
We report single-mode operation of phase-locked arrays of surface-emitting distributed-feedback terahertz quantum-cascade lasers. Carefully-designed phase-sector locks lasers in-phase, creating tighter beam-patterns along the phased-array direction (FWHM ≈ 10°). This method allows beam-steering applications at terahertz frequencies.
Keywords :
Frequency; Laser mode locking; Laser theory; Laser tuning; Optical arrays; Optical waveguides; Phased arrays; Quantum cascade lasers; Surface emitting lasers; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA, USA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
