TY - JOUR
T1 - Large square resonator laser with quasi-single-mode operation
AU - Hattori, Haroldo Takashi
AU - Liu, Danyu
AU - Tan, Hark Hoe
AU - Jagadish, Chennupati
PY - 2009/3/15
Y1 - 2009/3/15
N2 - A large square resonator with a size of 8.3 μm can support many resonant modes, including whispering gallery modes. The inclusion of trenches at judicious node positions of a selected mode will not significantly affect this mode (i.e., its quality factor will not be significantly reduced) while the remaining modes will drastically lose power through radiation. Since most of the modes will not be able to overcome their radiation losses, only a single mode will resonate in the modified structure. We demonstrate, experimentally, single-mode operation of this device at a temperature of 4.2 K.
AB - A large square resonator with a size of 8.3 μm can support many resonant modes, including whispering gallery modes. The inclusion of trenches at judicious node positions of a selected mode will not significantly affect this mode (i.e., its quality factor will not be significantly reduced) while the remaining modes will drastically lose power through radiation. Since most of the modes will not be able to overcome their radiation losses, only a single mode will resonate in the modified structure. We demonstrate, experimentally, single-mode operation of this device at a temperature of 4.2 K.
KW - Micro-lasers
KW - Semiconductor lasers
KW - Square resonators
UR - http://www.scopus.com/inward/record.url?scp=63049088223&partnerID=8YFLogxK
U2 - 10.1109/LPT.2008.2011921
DO - 10.1109/LPT.2008.2011921
M3 - Article
SN - 1041-1135
VL - 21
SP - 359
EP - 361
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 6
ER -