Mode suppression in metal filled photonic crystal vertical cavity lasers

Simulation results for an etched air hole photonic crystal (PhC) vertical cavity surface emitting laser (VCSEL) structure with various thicknesses of metal deposited inside the holes are presented. The higher-order modes of the structure are more spread out than the fundamental mode, and penetrate into the metal-filled holes. Due to the lossy nature of the metal, these higher-order modes experience a greater loss than the fundamental mode, resulting in an enhanced side mode suppression ratio (SMSR). A figure of merit for determining which metals would have the greatest impact on the SMSR is derived and validated using a transmission matrix method calculation. A full three-dimensional simulation of the PhC VCSEL structure is performed using the plane wave admittance method, and SMSRs are calculated for increasing metal thicknesses. Of the metals simulated, chromium provided the greatest SMSR enhancement with more than a 4 dB improvement with 500 nm of metal for an operating current of 12 times threshold.

[1]  Michael I. Miller,et al.  Single-mode VCSELs , 2002, SPIE OPTO.

[2]  T. Uchida,et al.  Spontaneous emission factor and its scaling in vertical cavity surface emitting lasers , 1994 .

[3]  K. Panajotov,et al.  PlaneWave Admittance Method- a novel approach for determining the electromagnetic modes in photonic structures. , 2005, Optics express.

[4]  Mary K. Hibbs-Brenner,et al.  Recent progress in short-distance optical interconnects , 1997, Photonics West.

[5]  M. Tan,et al.  Photonic Crystal Vertical Cavity Lasers With Wavelength-Independent Single-Mode Behavior , 2008, IEEE Photonics Technology Letters.

[6]  Kent D. Choquette,et al.  Endlessly single-mode photonic-crystal vertical-cavity surface-emitting lasers , 2008, SPIE OPTO.

[7]  Masataka Nakazawa,et al.  10 Gb/s transmission over 3 km at 850 nm using single-mode photonic crystal fiber, single-mode VCSEL, and Si-APD , 2006 .

[8]  E. Palik.  Handbook of Optical Constants of Solids , 1997 .

[9]  Il-Sug Chung,et al.  Numerical methods for modeling photonic-crystal VCSELs. , 2010, Optics express.

[10]  Yong-Hee Lee,et al.  Single-fundamental-mode photonic-crystal vertical-cavity surface-emitting lasers , 2002 .

[11]  S. Shaari,et al.  Analysis of single-mode condition and high-order modes discrimination in photonic crystal VCSEL , 2011 .

[12]  A. Rakić,et al.  Algorithm for the determination of intrinsic optical constants of metal films: application to aluminum. , 1995, Applied optics.

[13]  A. M. Kasten,et al.  Hydrogen Detection Using a Functionalized Photonic Crystal Vertical Cavity Laser , 2012, IEEE Journal of Quantum Electronics.

[14]  Masud Mansuripur,et al.  Principles and techniques of optical data storage , 1997, Proc. IEEE.

[15]  L. Coldren,et al.  Diode Lasers and Photonic Integrated Circuits , 1995 .