Virtual Journal of Laser

Publication year: 2010
Source: Optics Communications, In Press, Uncorrected Proof, Available online 6 February 2010
Wei, Li , Ning Hua, Zhu , Li Xian, Wang , Jian Hong, Ke , Shuo Fu, Chen , ...
In this paper, the spectral relation between the master and the frequency-locked slave laser (FLSL) is investigated by the conventional technique of optical intensity modulation and optical heterodyne. Experimentally, we demonstrate that under complete and stable locking condition, the lightwave of the FLSL and the sidebands of the master laser produced by the optical intensity modulation are perfectly coherent (frequency coherence). Referring to our recent studies, the lightwave of the master laser and its corresponding sidebands are also perfectly coherent. Additionally, the spectral structures of two perfectly coherent lightwaves are identical in the level of wave train. Therefore, we indirectly...