The generation of passive dual wavelengths Q-switched YDFL by MoSe2 film. (13th October 2016)

• Record Type: Journal Article
• Authors: Ahmad, H; Rashid, F A A; Azzuhri, S R; Salim, M A M; Shaharuddin, R A; Ismail, M A; Razak, M Z A
• Is Part Of: Laser physics letters. Volume 13:Number 11(2016:Nov.)
• Publication Date: 2016-10-13
• Subjects: D-shaped polished fiber -- ytterbium -- MoSe2 film -- dual wavelengths -- fiber laser; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-2011/13/11/115102
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: A simple ytterbium doped fiber laser (YDFL) setup was used to generate Q-switching pulses by using a D-shaped polished fiber as a wavelength selective filter. The gain medium used in the cavity was ytterbium doped fiber with length 70 cm. By utilizing a MoSe2 film as saturable absorber into the cavity, a stable dual wavelength was produced at 1036.69 and 1039.22 nm. The wavelength separation of the output spectrum was 2.53 nm. We found a maximum pulse energy of 0.99 nJ and shortest pulse width of 1.2 µ s. We have determined consistent dual-wavelength Q-switching pulses for the 1-micron region.