Abstract
This paper describes a proposal and successful demonstration of a dual wavelength all-fiber passively Q-switched erbium-doped fiber ring laser. The Q-switch operation was realized by using a nonlinear loop mirror that incorporated an unbalanced dispersion-decreasing taper fiber to act as a saturable absorber without additional elements. This setup enabled a fiber ring laser to achieve a performance of 48.7 kHz repetition rate with pulse duration of around 3.2 μs and approximate pulse energy of 20 nJ.
Highlights
Q-switched fiber lasers attract significant contemporary interest due to their use in numerous applications such as industrial metal cutting, nonlinear optics, optical communications, and measurements systems
One of the earliest demonstrations of CNT for Q-switching lasers was the use of a saturable absorber incorporating carbon nanotubes (SAINT), whereby a single-walled CNT is embedded between two quartz substrates to create a mode-locked and Q-switched laser [4]
graphene oxide (GO) coated on indium tin oxide (ITO) [12] and GO flakes deposited on a taper fiber to exploit the evanescent field interaction with the graphene deposit have been reported [13, 14]
Summary
Q-switched fiber lasers attract significant contemporary interest due to their use in numerous applications such as industrial metal cutting, nonlinear optics, optical communications, and measurements systems. Such lasers are categorized as either passive or active. Q-switched lasers offer comparative advantages of compactness, simplicity, power efficiency, easy integration with optical systems, and no active medium requirement since the medium is a saturable absorber. Other CNT designs for Q-switched lasers have used a CNT deposit at an output mirror coupler in a linear waveguide cavity [5], and D-shaped depositions that enhance CNT flake interaction with the evanescent field [6, 7]. GO coated on indium tin oxide (ITO) [12] and GO flakes deposited on a taper fiber to exploit the evanescent field interaction with the graphene deposit have been reported [13, 14]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
