研究了激光偏振和模竞争以及因二者结合而产生的系列激光物理现象，并将其归纳成为28个“正交偏振双纵模激光器腔调谐物理效应”。并以He-Ne激光器（双折射He-Ne、双折射塞曼He-Ne），NdYAG微片激光器和面发射半导体激光器（VCSEL）为观察对象，研究追求系统性和完整性，揭示正交偏振双纵模激光器物理效应全貌，使研究结果成为激光原理的一个分支，以期裨益于激光学术进步和应用的发展。

The investigation results of laser polarization, mode competition and phenomena by their combination are summarized. These findings are obtained with cavity tuning of orthogonally polarized dual frequency lasers including He-Ne lasers (birefringence He-Ne laser, birefringence-Zeeman He-Ne laser), microchip NdYAG lasers and vertical cavity surface-emitting lasers (VCSEL). 28 most important physical phenomena, instead of all, are presented, which describe characteristics comprehensively in this kind laser and will benefit the laser science and applications.