Our research was motivated to identify potential laser dyes characterized by a high fluorescence quantum yield and a high orientational order parameter governing emission dipoles, and to impart device stability and robustness by using solid cholesteric liquid crystals as the hosts. A high fluorescnece quantum yield is essential for a high lasing efficiency. Furthermore, an emission dipole parallel to the long molecular axis is imperative to achieving a high orientational order parameter. Monodisperse oligofluorenes developed in our laboratory for green and red light emission have been demonstrated to be superior laser dyes in terms of fluorescence quantum yield and orientational order parameter. To ensure device stability and robustness, these promising laser dyes are doped in low-molar-mass cholesteric glassy liquid crystals (GLCs) comprising chiral conjugated oligomers also developed in our laboratory. The order parameter is evaluated by ellipsometry as well as absorption and emission dichroism, and the effects of orientational order on lasing efficiency, threshold, and spectral purity are elucidated within the framework of recent theories.