Abstract
We have demonstrated laser frequency offset locking via the tripod-type double-dark resonances electromagnetically induced transparency (EIT) system. The influence of coupling fields’ power and detuning on the tripod-type EIT profile is studied in detail. In a wide coupling field’s detuning range, the narrower EIT dip has an ultranarrow linewidth of , which is about one order narrower than the natural linewidth of . Without the additional frequency stabilization of the coupling lasers, we achieve the relative frequency fluctuation of 60 kHz in a long time of , which is narrower than the short-time linewidth of each individual laser.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
Kang Ying, Yueping Niu, Dijun Chen, Haiwen Cai, Ronghui Qu, and Shangqing Gong
J. Opt. Soc. Am. B 31(1) 144-148 (2014)
Shuang Ren, Yu Tang, Chuang Yang, Siyuan Wang, and Hanbin Zhou
Appl. Opt. 63(15) 4219-4225 (2024)
Priyabrata Seth, Dipankar Bhattacharyya, Nawaz Sarif Mallick, and Sankar De
J. Opt. Soc. Am. B 41(3) 665-673 (2024)