Nor Najwa Ismail;Rizal Ramli;Norazriena Yusoff;Siti Nabila Aidit
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引用次数: 0
Abstract
In this study, a nickel-phosphorus trisulfide (NiPS3) saturable absorber (SA) with a ~20.9% modulation depth was used for mode-locking in an erbium-doped fiber laser (EDFL) operating in near-zero and anomalous dispersion regimes. The SA was formed by depositing a layer of NiPS${}_{\mathbf {3}}$ material onto an arc-shaped fiber. The pulses generated were initially observed in the stretched pulse regime. Then, an 84 m long single-mode fiber (SMF) was added to the cavity to operate in the anomalous dispersion regime. The center wavelength of the pulses was observed at 1566.6 nm and 1561.6 nm for the stretched and anomalous dispersion regimes, respectively, with measured 3-dB bandwidths of 3.2 nm and 1.4 nm. The corresponding repetition rates were 6.6 MHz and 1.8 MHz, while the pulse widths with Gaussian and sech${}^{\mathbf {2}}$ profiles were 1.53 ps and 2.25 ps. Stable mode-locking operation was obtained with a signal-to-noise ratios (SNRs) of ~66 dB and ~49 dB for the pulses at the stretched and soliton regimes. The findings of this work can contribute towards the optimization of mode-locked fiber laser cavity designs for the C-band wavelength region.
期刊介绍:
The IEEE Journal of Quantum Electronics is dedicated to the publication of manuscripts reporting novel experimental or theoretical results in the broad field of the science and technology of quantum electronics. The Journal comprises original contributions, both regular papers and letters, describing significant advances in the understanding of quantum electronics phenomena or the demonstration of new devices, systems, or applications. Manuscripts reporting new developments in systems and applications must emphasize quantum electronics principles or devices. The scope of JQE encompasses the generation, propagation, detection, and application of coherent electromagnetic radiation having wavelengths below one millimeter (i.e., in the submillimeter, infrared, visible, ultraviolet, etc., regions). Whether the focus of a manuscript is a quantum-electronic device or phenomenon, the critical factor in the editorial review of a manuscript is the potential impact of the results presented on continuing research in the field or on advancing the technological base of quantum electronics.