Mode-locked thulium-fluoride fibre laser with an adjustable pulse width using a nonlinear optical loop mirror. (February 2019)

• Record Type: Journal Article
• Authors: Ahmad, H.; Aidit, S.N.; Ooi, S.I.; Tiu, Z.C.
• Is Part Of: Quantum electronics. Volume 49:Number 2(2019)
• Page Start: 111
• Page End: 114
• Publication Date: 2019-02
• Subjects: nonlinear optical loop mirror -- dissipative soliton resonance -- mode-locked fibre laser; Quantum electronics -- Periodicals; 537.5
• DOI: 10.1070/QEL16770
• Languages: English
• ISSNs: 1063-7818

Abstract

Abstract: A mode-locked thulium-fluoride fibre laser with a tunable pulse width using a nonlinear optical loop mirror (NOLM) for operation in the S-band region is proposed and demonstrated. Stable dissipative soliton resonance (DSR) mode-locked pulses are obtained at a threshold pump power of 186.8 mW and maintain stability until a maximum pump power of 249.7 mW. Pulse width modulation of between 70.8 ns and 120.3 ns is obtained over the operating pump power range, with a fundamental frequency at 97.4 kHz. A maximum output power of 0.99 mW and a pulse energy of 10.21 nJ are obtained. The output pulse has a signal-to-noise ratio of 69 dB at the maximum pump power, indicating a highly stable output. The variable pulse width will find significant applications as modulated light sources for various optical and optoelectronic systems.