Widely tunable compact erbium-doped fiber ring laser for fiber-optic sensing applications

Characteristics of multiwavelength L-band Brillouin–Raman fiber laser under forward and backward pumped environment

“…The generation of multiwavelength fiber lasers with constant channel spacing has been proposed in many works during the past two decades, due to their potential applications as attractive optical sources for wavelength division multiplexing communication systems [1,2], optical sensor systems [3][4][5][6], fiber laser gyroscopes [7,8], optical frequency metrology [9], and in switchable high-frequency microwave generation [10].…”

Versatile and widely tunable mid-infrared erbium doped ZBLAN fiber laser

“…Thus, the ratio ΔE L ∕E Z L , where ΔE L is the total Stark splitting of the lower laser level and E Z L is the zero line energy for the transition, would increase as the center wavelength increases (i.e., E Z L decreases). This trend is somewhat borne out from demonstrations of widely tunable rare earth doped fiber lasers that have involved the ground-state terminated transitions of Yb 3 [13], Er 3 [14], and Tm 3 [15] in silicate glasses that have displayed tuning ranges of 144, 100, and 255 nm, respectively. (These tuning ranges provide Δλ r ∕λ c ratios, where Δλ r is the tuning range and λ c is the center wavelength of the tuning of 0.14, 0.063, and 0.13, respectively.)…”

The use of nonlinear dynamics of erbium-doped fiber laser at pump modulation for intra-cavity sensing

“…A variety of EDFL regimes have been demonstrated: multi-wavelength operation [3,4], stable Q-switching and mode-locking [5,6], narrow-line [7] and even single-frequency [8,9] oscillation, wide-range wavelength tuning [1,10], and nonlinear dynamics regimes at external pump modulation [11,12]. The richness of operation regimes and generation wavelengths make EDFLs invaluable for applications, e.g.…”