Title :
Recent advances in IR semiconductor laser diodes and future trends
Author :
Razeghi, M. ; Bai, Y. ; Bandyopadhyay, N. ; Gokden, B. ; Lu, Q.Y. ; Slivken, S.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Northwestern Univ., Evanston, IL, USA
Abstract :
The wall plug efficiency of the mid-infrared quantum cascade laser in room temperature continuous wave (cw) operation is brought to 21%, with a maximum output power of 5.1 W. Using a surface grating distributed feedback (DFB) approach, we demonstrated 2.4 W single mode output in room temperature cw operation. With a photonic crystal distributed feedback (PCDFB) design, we achieved single mode spectrum and close to diffraction limited far field with a room temperature high peak power of 34 W.
Keywords :
diffraction gratings; distributed feedback lasers; photonic crystals; quantum cascade lasers; semiconductor lasers; IR semiconductor laser diode; continuous wave operation; midinfrared quantum cascade laser; photonic crystal distributed feedback design; power 2.4 W; power 34 W; power 5.1 W; single mode output; surface grating distributed feedback; temperature 293 K to 298 K; wall plug efficiency; Cavity resonators; Distributed feedback devices; Gratings; Photonic crystals; Plugs; Power generation; Quantum cascade lasers; Quantum cascade lasers; distributed feedback; high power; high wall plug efficiency;
Conference_Titel :
Photonics Society Summer Topical Meeting Series, 2011 IEEE
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4244-5730-4
DOI :
10.1109/PHOSST.2011.6000041
