One-dimensional parabolic-beam photonic crystal laser.
We report one-dimensional (1-D) parabolic-beam photonic crystal (PhC) lasers in which the width of the PhC slab waveguide is parabolically tapered. A few high-Q resonant modes are confirmed in the vicinity of the tapered region where Gaussian-shaped photonic well is formed. These resonant modes originate from the dielectric PhC guided mode and overlap with the gain medium efficiently. It is also shown that the far-field radiation profile is closely associated with the symmetry of the structural perturbation.
Ahn
Byeong-Hyeon
BH
Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.
Kang
Ju-Hyung
JH
Kim
Myung-Ki
MK
Song
Jung-Hwan
JH
Min
Bumki
B
Kim
Ki-Soo
KS
Lee
Yong-Hee
YH
D017076:Computer-Aided Design; D003460:Crystallization / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D017785:Photons