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Noise-like pulses (NLPs) are of interest as they can provide low temporal coherence, smooth and broad spectra and high brightness. Owing to these merits, NLPs can facilitate many optical sensing applications, such as hybrid interrogation of high-count low reflectivity fiber Bragg grating arrays. In this paper, we report the abnormal NLP evolution in a passively Er-doped mode-locked fibre laser, of...
Currently, GNSS compatibility and interoperability are one of the most significant problems in multisystem navigation and position. If the prediction precision of system time offset is enhanced, the multi-system user's requirements can be satisfied, about positioning, timing, and so on. And the development of GNSS compatibility and interoperability will be promoted. To increase the prediction precision...
All-fiber Tm/Ho co-doped mode-locked fiber laser based on a side polished fiber with atom-layered graphene manufactured by chemical-vapor-deposition (CVD) method as platform has been investigated, which can operate from fundamental to thirteenth harmonic mode locking.
Graphene oxide (GO) has been used for optical intensity manipulation and short pulse shaping. Most interestingly, it can be used as a broadband light absorber. Such property has been systematically investigated in this paper, in a broad wavelength range from 1 to 2-μm. We fabricated one type of GO/polyvinyl alcohol (GO/PVA) film and use it as a saturable absorber (SA) in Er-, Yb-, and Tm-doped fiber...
We demonstrate a fiber ring laser based on a single-walled carbon nanotube (SWCNT) wall paper absorber. It is found that the proposed Yb-doped fiber laser can either be operated in the mode-locked states or Q-switched states. First, SWCNT wall paper acts as a mode locker when the pump power is below 80 mW. Self-started mode locking can be obtained when the pump power is about 47 mW. The proposed Yb-doped...
We compare the timing noise properties of three most typical carbon materials, i.e., single walled carbon nanotubes, graphene and graphene oxide as saturable absorbers in a passively mode-locked Er-doped fiber laser as a test platform.
Experimental observations of multiple dissipative solitons are reported in a fiber laser with large normal-cavity-dispersion. Eight solitons can be generated from the laser cavity at pump power of about 310mW. Results show that the stable propagation of dissipative solitons may be limited by the accumulation of excessive pulse chirps.
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