Widely tunable mode-locked fiber laser using carbon nanotube and LPG W-shaped filter Wang, Jie ; Ping Zhang, A. ; Shen, Yong Hang ; Tam, Hwa-yaw ; Wai, P. K. A. Abstract Publication: Optics Letters Pub Date: September 2015 DOI: 10.1364/OL.40.004329 Bibcode: 2015OptL...40.4329W