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This paper describes a successful demonstration of S-band region wavelength output generated via a tunable Q-switch fiber laser with the topological insulator (TI) Bi2Se3 as a saturable absorber (SA). The modulation depth of the TI was measured as 11.1%, whereas the utilized 980-nm laser source operated at 100 mW pump power. By inserting the TI-SA between two ferrules and utilizing a tunable bandpass...
We successfully demonstrated a simple, compact and low cost passive Q-switched Thulium doped fiber laser (TDFL) at long wavelength of 1854.3 nm regions in conjunction with 1552 nm pump excitation. A stable pulse has been generated using graphene film based saturable absorber (SA). The graphene is synthesized by electrochemical exfoliation of graphite at room temperature in 1% sodium dodecyl sulphate...
Performance of a double-clad Tm3+/Yb3+ co-doped yttria-alumino-silicate fiber (TYDF) fiber laser are compared for linear laser and ring laser using 905nm and 931nm pump wavelengths. TYDF used has a D-shaped cross section structure with Tm3+ concentration of 5.55×1019ions/cc and Yb3+ concentration is 13.5×1019ions/cc. Cladding-pumping scheme is applied for this fiber. Linear laser operates at 1901nm...
A new spacing-switchable multiwavelength erbium-doped fiber laser (EDFL) is demonstrated using switchable nonlinear polarization rotation (NPR) and stimulated Brillouin scattering (SBS) effects. The laser employs a 100-m-long photonic crystal fiber in conjunction with a four-port circulator in a figure-of-eight arrangement to provide the intensity-dependent transmission effect, as well as to discriminate...
A compact configuration for achieving wavelength tenable and stable Multi wavelength Brillouin fiber laser (MWBFL) configuration is proposed and experimentally investigated based on a 100 m long photonic crystal fiber (PCF) as a Brillouin gain medium. A stable room-temperature even order Brillouin Stokes waves appear in the figure-of-eight oscillation direction of with the line spacing 0.16 nm (~20...
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