title: Mode-selective lasing in high-Q polymer micro bottle resonators.
abstract: Passive and active polymer micro bottle resonators (MBRs) are fabricated. Equatorial whispering gallery modes and bottle modes are clearly identified, with highest loaded quality (Q) factor above 10(5). Lasing with threshold as low as 1 nJ/pulse is realized in active MBRs. Mode selective lasing is achieved by coupling a tapered fiber to equatorial whispering gallery modes or a group of bottle modes. The bottle mode free spectral range (FSR) is found to be about one fifth of the equatorial modes.
authors.forename: Qijing
authors.initials: Q
authors.lastname: Lu
authors.forename: Xiang
authors.initials: X
authors.lastname: Wu
authors.forename: Liying
authors.initials: L
authors.lastname: Liu
authors.forename: Lei
authors.initials: L
authors.lastname: Xu