Multi-wavelength Er–Yb-doped fibre ring laser using a double-pass Mach–Zehnder interferometer with a Sagnac interferometer

A micrometric deflection fiber laser sensor controlled by polarized light pumping

“…The advantages reported in this work compared to [13][14][15][16][17][18][19][20][21][22][23] in the results presented by us it is observed that the central wavelength adjustment was achieved through rotating the polarization controller (PC). In addition, through the experimental scheme, the range of adjustment can be improved.…”

“…This highlights the results obtained in our work where a fiber optic medium is used tuning through micrometric deflection and polarized light pumping achieving tuning in ranges between 1520's and 1550's. Another of the advantages obtained in comparison with the works presented [13][14][15][16][17][18][19][20][21][22][23] is the possibility of tuning with multiple wavelengths with high sensitivity, good linearity, simple fabrication, and low cost.…”

“…In addition, through the experimental scheme, the range of adjustment can be improved. The works reviewed to make the comparisons have the tuning ability in ranges between the 1080's-1090's nm using Ytterbiumdoped fiber (YDF) [13][14][15][16], 1530's-1560's nm with Erbiumdoped fiber (EDF) [17][18][19][20] and 1880's-1890's nm using Tm doped fiber [21][22][23], achieving this through mechanisms such as free-space, opto-fluidic or thermos-optic. This highlights the results obtained in our work where a fiber optic medium is used tuning through micrometric deflection and polarized light pumping achieving tuning in ranges between 1520's and 1550's.…”

Fiber laser with dual-channel and a selectable comb filter based on Vernier effect of parallel-connected two Mach–Zehnder interferometers

“…The most relevant parameter of the present investigation is the maximum intervals between the wavelengths which is superior in comparison to previously published work. The wavelength spacing is 26 nm, while for Lyot and Sagnac structures are 17.12 and 12 nm, respectively 37 , 38 . In this work, dual-wavelength laser generation has been achieved with a wider tuning range due to a wider FSR without the need for additional components.…”

“…The wavelength spacing is 26 nm, while for Lyot and Sagnac structures are 17.12 and 12 nm, respectively. 37,38 In this work, dual-wavelength laser generation has been achieved with a wider tuning range due to a wider FSR without the need for additional components. EDFL emission centered at 1532.2 and 1558.2 nm was achieved.…”