S-band Q-switched fiber laser using MoSe2 saturable absorber

• Published in: Optics communications Vol. 382; pp. 93 - 98
• Main Authors: Ahmad, H., Ismail, M.A., Sathiyan, S., Reduan, S.A., Ruslan, N.E., Lee, C.S.J., Zulkifli, M.Z., Thambiratnam, K., Ismail, M.F., Harun, S.W.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2017
• Subjects: Fiber laser; Molybdenum diselenide; Q-switching; S-band, saturable absorber; Molybdenum diselenide; S-band, saturable absorber; Q-switching; Fiber laser
• ISSN: 0030-4018; 1873-0310
• DOI: 10.1016/j.optcom.2016.07.010

A passively Q-switched S-band fiber laser using Molybdenum Diselenide (MoSe2) saturable absorber (SA) is proposed and demonstrated. The SA is fabricated by depositing MoSe2 onto two fiber ferrules using the drop-cast method before heating and connecting the two fiber ferrules to form the SA. The passively Q-switched fiber laser designed using the MoSe2 SA has an operational range of 1491.0–1502.0nm. The output pulse train has a pulse-width ranging from 2.0μs to 1.0μs and corresponding repetition rate of between 34.5kHz and 90kHz with increasing pump powers, as well as a signal-to-noise of about 35.97dB. The peak performance of the proposed laser is between 1480.0 and 1490.0nm, corresponding to the first peak gain region with the S-band. •This is the first time an S-band Q-Switched Fiber Laser using a MoSe2 saturable absorber has been reported.•The laser has an operational range of 1491.0–1502.0nm, making it suitable for operation in the 1-μm region.•The peak performance of the proposed laser is between 1480.0 and 1490.0nm, corresponding to the first peak gain region with the S-band.