Title :
Low threshold blue conjugated polymer DFB lasers
Author :
Karnutsch, C. ; Haug, V. ; Gaertner, C. ; Lemmer, U. ; Farrell, T. ; Nehls, B. ; Scherf, U. ; Wang, J. ; Weimann, T. ; Heliotis, G. ; Pflumm, C. ; deMello, J. ; Bradley, D.D.C.
Author_Institution :
Lichttechn. Inst., Univ. Karlsruhe, Karlsruhe
Abstract :
We report low threshold blue polyfluorene distributed-feedback (DFB) lasers. Second-order lasers exhibit a laser threshold of 0.28 nJ/pulse while the threshold is reduced to 0.16 nJ/pulse for first-order gratings. Laser diode pumping is demonstrated.
Keywords :
diffraction gratings; distributed feedback lasers; optical pumping; semiconductor lasers; DFB lasers; blue conjugated polymer; distributed feedback lasers; first-order gratings; laser diode pumping; low threshold blue polyfluorene; second-order lasers; Chemical lasers; Diode lasers; Gratings; Laser excitation; Laser tuning; Optical films; Optical pulses; Polymers; Pump lasers; Semiconductor lasers; (140.3410) Laser resonators; (140.3490) Lasers, distributed-feedback; (140.7300) Visible lasers;
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4627622
