Diode laser using narrow bandwidth interference filter at 852 nm and its application in Faraday anomalous dispersion optical filter

Jiang Zhaojie¹, Zhou Qi², Tao Zhiming^{1, 3}, Zhang Xiaogang¹, Zhang Shengnan¹, Zhu Chuanwen¹, Lin Pingwei⁴, Chen Jingbiao^{1, †,}

(a) Experimental setup of the external cavity diode laser. LD: laser diode; LC: collimating lens; IF: interference filter; L: lens; OC: out-coupler whose transmission is 60%; PZT: piezoelectric transducer. (b) Photograph of the external cavity diode laser.