Two-Dimensional Coupled Wave Theory for Triangular Lattice TM-Polarised Photonic Crystal Surface Emitting Lasers

被引：0
|
作者：
Robinson, Matthew N. [1 ,2 ]
Sweeney, Stephen John [1 ]
Hogg, Richard A. [3 ]
机构：
[1] Univ Glasgow, James Watt Sch Engn, Glasgow G12 8QQ, Lanark, Scotland
[2] Queens Univ Belfast, Ctr Quantum Mat & Technol, Belfast BT7 1NN, Antrim, North Ireland
[3] Aston Univ, Aston Inst Photon Technol, Birmingham B4 7ET, W Midlands, England
来源：
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 2025年 / 31卷 / 02期
基金：
英国工程与自然科学研究理事会;
关键词：
Lattices; Continuous wavelet transforms; Couplings; Vectors; Photonic crystals; Surface emitting lasers; Mathematical models; Laser modes; Distributed feedback devices; Three-dimensional displays; Coupled wave theory; triangular lattice; transverse-magnetic polarisation;
D O I：
10.1109/JSTQE.2024.3502794
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a coupled-wave analysis of triangular-lattice photonic crystal surface emitting lasers (PCSELs) with transverse magnetic polarization. Six plane waves coupled by Bragg diffraction describe the two-dimensional optical coupling. Resonant mode frequencies are calculated for a lattice of circular holes at various fill factors and compared to the plane-wave expansion method. Analytical equations for coupling constants and mode frequencies are derived, and mode degeneracy as a function of fill factor is examined. Comparison to a square lattice TM mode PCSEL shows improved in-plane 2D coupling. The general equations for arbitrary unit cell dielectric functions are discussed, with predictions of the lasing mode supported by finite device calculations.
引用
收藏
页数：11
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