Raman Assisted Fiber Optical Parametric Amplifier for S-Band Multichannel Transmission System

Supe, Andis; Zakis, Kaspars; Gegere, Lilita; Redka, Dmitrii; Poriņš, Jurģis; Spolītis, Sandis; Bobrovs, Vjačeslavs

doi:10.3390/fib9020009

Cited by 14 publications

(3 citation statements)

References 53 publications

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“…1 Later, optical ber was discovered by Kao and Hockham 2 in 1966 providing inroads for the development of optical ber devices. Consequently, signicant progress in the eld of optical ampliers in the region of S-to L-bands [3][4][5][6][7][8][9][10][11][12] as well as the development of multiwavelength ber lasers [13][14][15][16][17][18][19][20][21][22] and also optical sensor devices [23][24][25] has taken place. As technology grew, new industrial demands for high-power lasers as an alternative to the bulk and complex laser systems in the area of gas spectroscopy, medicine, and manufacturing have been the main focus of laser research.…”

Section: Introductionmentioning

confidence: 99%

Generation of mode-locked pulses based on D-shaped fiber with CdTe as a saturable absorber in the C-band region

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Generation of mode-locked pulses based on D-shaped fiber with CdTe as a saturable absorber in the C-band region

et al. 2022

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“…Fiber laser systems and nonlinear optical converters are in demand for a wide variety of applied and fundamental problems, including telecommunications, noninvasive medical diagnostics, laser surgery, sensing, spectroscopy, etc. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Design and Dispersion Control of Microstructured Multicore Tellurite Glass Fibers with In-Phase and Out-of-Phase Supermodes

Anashkina

Andrianov

2021

Photonics

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High nonlinearity and transparency in the 1–5 μm spectral range make tellurite glass fibers highly interesting for the development of nonlinear optical devices. For nonlinear optical fibers, group velocity dispersion that can be controlled by microstructuring is also of great importance. In this work, we present a comprehensive numerical analysis of dispersion and nonlinear properties of microstructured two-, four-, six-, and eight-core tellurite glass fibers for in-phase and out-of-phase supermodes and compare them with the results for one-core fibers in the near- and mid-infrared ranges. Out-of-phase supermodes in tellurite multicore fibers are studied for the first time, to the best of our knowledge. The dispersion curves for in-phase and out-of-phase supermodes are shifted from the dispersion curve for one-core fiber in opposite directions; the effect is stronger for large coupling between the fields in individual cores. The zero dispersion wavelengths of in-phase and out-of-phase supermodes shift to opposite sides with respect to the zero-dispersion wavelength of a one-core fiber. For out-of-phase supermodes, the dispersion can be anomalous even at 1.55 μm, corresponding to the operating wavelength of Er-doped fiber lasers.

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“…The discovery of optical fibers by Charles Kao and George A. Hockam in 1966 gave the inroads for optical amplifier development with a wavelength range of 1.46–1.53 µm 1 , 2 , 1.53–1.565 µm 3 , 4 and 1.565–1.625 µm 5 – 10 . Consequently, the development of laser configuration such as pulsed 11 , 12 , dual and multiwavelength 13 – 22 , and optical sensors 23 – 25 has been the focus of many research laboratories.…”

Section: Introductionmentioning

confidence: 99%

2 μm passively mode-locked thulium-doped fiber lasers with Ta2AlC-deposited tapered and side-polished fibers

Ahmad

Azri

Ramli

et al. 2021

Sci Rep

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In this work, mode-locked thulium-doped fiber lasers operating in the 2 µm wavelength region were demonstrated using tantalum aluminum carbide (Ta2AlC)-based saturable absorbers (SAs) utilizing the evanescent wave interaction. The Ta2AlC MAX Phase was prepared by dissolving the Ta2AlC powder in isopropyl alcohol and then deposited onto three different evanescent field-based devices, which were the tapered fiber, side-polished fiber, and arc-shaped fiber. Flame-brushing and wheel-polishing techniques were used to fabricate the tapered and arc-shaped fibers, respectively, while the side-polished fiber was purchased commercially. All three SA devices generated stable mode-locked pulses at center wavelengths of 1937, 1931, and 1929 nm for the tapered, side-polished, and arc-shaped fibers. The frequency of the mode-locked pulses was 10.73 MHz for the tapered fiber, 9.58 MHz for the side-polished fiber, and 10.16 MHz for the arc-shaped fiber. The measured pulse widths were 1.678, 1.734, and 1.817 ps for each of the three SA devices. The long-term stability of the mode-locked lasers was tested for each configuration over a 2-h duration. The lasers also showed little to no fluctuations in the center wavelengths and the peak optical intensities, demonstrating a reliable, ultrafast laser system.

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Raman Assisted Fiber Optical Parametric Amplifier for S-Band Multichannel Transmission System

Cited by 14 publications

References 53 publications

Generation of mode-locked pulses based on D-shaped fiber with CdTe as a saturable absorber in the C-band region

Generation of mode-locked pulses based on D-shaped fiber with CdTe as a saturable absorber in the C-band region

Design and Dispersion Control of Microstructured Multicore Tellurite Glass Fibers with In-Phase and Out-of-Phase Supermodes

2 μm passively mode-locked thulium-doped fiber lasers with Ta2AlC-deposited tapered and side-polished fibers

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