Generation of sub-nanosecond pulse in dual-wavelength praseodymium fluoride fibre laser. (28th August 2019)

• Record Type: Journal Article
• Authors: Ahmad, H; Ahmed, M H M; Samion, M Z; Kamely, A A; Ismail, M F; Harun, S W; Thambiratnam, K
• Is Part Of: Laser physics. Volume 29:Number 10(2019)
• Publication Date: 2019-08-28
• Subjects: fibre lasers -- praseodymium doped fluoride (PDFFL) -- dual-wavelength; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1555-6611/ab3bcd
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: In this paper, we demonstrate a stable dual-wavelength pulsed output from a praseodymium doped fluoride fiber laser. These dual functions are induced by intensity-dependent transmission and loss due to the cavity birefringence. The two lasing wavelengths centered at 1298.26 nm and 1299.91 nm with a spacing of 1.65 nm and a 3 dB bandwidth of 0.11 nm and 0.13 nm respectively are obtained. The pulse width induced by the dual-wavelength laser falls within the picosecond region, with a repetition rate of 389 KHz and a maximum average pulse energy of 5.4 nJ.