Abstract
We have demonstrated the operation of a new type of heterogeneous photonic crystal laser, a five-lattice-constant large photonic bandedge laser assisted by a photonic bandgap, in a triangular lattice at room temperature. When the air hole radius of the surrounding photonic crystal (PC) is slightly smaller than that of the bandedge mode region, most in-plane losses of the first K point bandedge mode in the central region are suppressed and the quality factor of the mode is greatly enhanced to 50000. We identified the photonic bandgap-bandedge (PBG-BE) lasing modes through the spectral position, near-field pattern, and the state of polarization, which correspond well with the results of the three-dimensional (3D) finite-difference time-domain (FDTD) method computation. The two-dimensional (2D) feedback mechanism of the first K bandedge was verified through the Fourier analysis. Low threshold incident peak pump power of ~ 0.24 mW is achieved owing to the low optical loss of the PBG-BE mode.
©2004 Optical Society of America
Full Article | PDF ArticleMore Like This
Sejeong Kim, Byeong-Hyeon Ahn, Ju-Young Kim, Kwang-Yong Jeong, Ki Soo Kim, and Yong-Hee Lee
Opt. Express 19(24) 24055-24060 (2011)
Ziyang Zhang and Min Qiu
Opt. Express 12(17) 3988-3995 (2004)
Majid Badieirostami, Babak Momeni, Mohammad Soltani, Ali Adibi, Yong Xu, and Reginald K. Lee
Opt. Express 12(20) 4781-4789 (2004)