RF excited laser的用法和样例：
例句
- An absolute distance heterodyne interferometer using a dual longitudinal mode He Ne laser is proposed.
提出了一种采用双纵模稳频激光器的新型绝对距离测量外差干涉仪。 - In order to study the optical feedback characteristics at the dual frequency laser, a birefringent external cavity was studied throughboth theoretical analysis and experiments.
摘要为了研究双频激光器的光回馈特性，采用双折射外腔光回馈的方法，进行了理论分析和实验验证，取得了双频激光器中条纹倍频现象的数据。
