A Faraday anomalous dispersion optical filter (FADOF) with a single transmission peak is achieved by using a buffer-gas (argon, 2 Torr)-filled rubidium cell. At room temperature, the transmission is 0.2% and the bandwidth of the transmission peak is 0.65 GHz. At a temperature of 63° C, the transmission rises to a maximum of 30.6%, with a bandwidth of 1.41 GHz. This FADOF may replace the use of interference filters or virtually imaged phased arrays in imaging modalities.
© 2012 Optical Society of America
Instrumentation, Measurement, and Metrology
Original Manuscript: March 8, 2012
Revised Manuscript: April 20, 2012
Manuscript Accepted: April 21, 2012
Published: June 7, 2012
Xiaobo Xue, Zhiming Tao, Qinqing Sun, Yelong Hong, Wei Zhuang, Bin Luo, Jingbiao Chen, and Hong Guo, "Faraday anomalous dispersion optical filter with a single transmission peak using a buffer-gas-filled rubidium cell," Opt. Lett. 37, 2274-2276 (2012)