Passively synchronized Q-switched and mode-locked dual-band Tm³⁺:ZBLAN fiber lasers using a common graphene saturable absorber.

ABSTRACT: Dual-band fiber lasers are emerging as a promising technology to penetrate new industrial and medical applications from their dual-band properties, in addition to providing compactness and environmental robustness from the waveguide structure. Here, we demonstrate the use of a common graphene saturable absorber and a single gain medium (Tm³⁺:ZBLAN fiber) to implement (1) a dual-band fiber ring laser with synchronized Q-switched pulses at wavelengths of 1480 nm and 1840 nm, and (2) a dual-band fiber linear laser with synchronized mode-locked pulses at wavelengths of 1480 nm and 1845 nm. Q-switched operation at 1480 nm and 1840 nm is achieved with a synchronized repetition rate from 20 kHz to 40.5 kHz. For synchronous mode-locked operation, pulses with full-width at half maximum d

SUBMITTER: Jia C 

PROVIDER: S-EPMC5090962 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature