Open AccessMode-selective lasing in high-Q polymer micro bottle resonators
Author(s) -
Qiwei Lu,
Xiang Wu,
Liying Liu,
Lei Xu
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.022740
Subject(s) - whispering gallery wave , lasing threshold , bottle , resonator , materials science , optics , free spectral range , q factor , coupling (piping) , optoelectronics , laser , physics , composite material
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.