Citation:
Fei Chen, Denis Gindre, and Jean-Michel Nunzi, Tunable circularly polarized lasing emission in distributed feedback dye lasers, Optics Express, 2008, Volume 16, Issue 21, Pages 16746-16753.
Abstract:
A tunable circularly polarized distributed feedback (DFB) laser based on reflection grating configuration was realized in a solution of 4- (dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran (DCM) doped methanol. Chiral photonic DFB structures with tunable photonic bandgap were generated by controlling the state of polarization of the two interfering pump beams. The dual-peak lasing emission spectrum indicates that the periodic chiral DFB grating is affected by a combination of modulations of gain and refractive index.
