Abstract Aim To investigate the coherent two-frequency laser after a single axial mode is split by the way of twisted-mode cavity with fine detuning in LD pumped solid state laser.

• 摘 要 目的 研究在激光二极管泵浦固体激光器内利用扭转模腔微失调的方法产生单纵模分裂并输出相干双频激光，频差连续可调。