1120 nm diode-pumped Bi-doped fiber amplifier Thipparapu, N. K. ; Jain, S. ; Umnikov, A. A. ; Barua, P. ; Sahu, J. K. Abstract Publication: Optics Letters Pub Date: May 2015 DOI: 10.1364/OL.40.002441 Bibcode: 2015OptL...40.2441T