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Raman gain in glass optical waveguide

Webb12 mars 2024 · Femtosecond direct laser writing is a well-established and robust technique for the fabrication of photonic structures. Herein, we report on the fabrication of buried waveguides in AgPO3 silver metaphosphate glasses, as well as, on the erase and re-writing of those structures, by means of a single femtosecond laser source. Based on the … WebbWe fabricated a low-loss (∼0.22dB/cm) rib waveguide (WG) in silicon-on-insulator with a small effective core area of ∼1.57μm 2 and measured the stimulated Raman scattering …

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Webb28 aug. 2008 · Backward Raman amplification in a fused‐silica fiber waveguide is studied using two dye lasers for its possible application as an amplifier and a pulse sharpening device. Greater than 90% of pump to signal conversion is observed together with a preferential amplification of the signal pulse front. Webb28 aug. 2008 · Optical resonators Lasers ABSTRACT Continuous‐wave Raman oscillation has been obtained employing single‐mode glass fibers in a Fabry‐Perot resonator configuration. The pump‐power input to the Raman laser required to reach threshold is 5 W of which approximately 50% is coupled into the fiber. geneseo youth football https://creafleurs-latelier.com

Raman gain in glass optical waveguides Semantic Scholar

WebbNet Raman gain as a function of the pump intensity for a 4.8 cm long silicon waveguide. Symbols represent the experimental results and solid curve is the modeling result. The … Webb24 sep. 2004 · We obtained 2.3 dB Raman gain in a 4.8-cm-long S-shaped WG using a 1455 nm pump laser with a cw power of 0.9 W measured before the WG. In addition, we … WebbFor a 4.8 cm long waveguide with an effective core area of ~1.6 µm2, we obtain a net CW Raman gain of >3dB with a pump power of ~700mW inside the waveguide. We observe … death metal 6 covers

Raman gain in glass optical waveguides (1973) Roger H. Stolen 603

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Raman gain in glass optical waveguide

Low‐threshold cw Raman laser - AIP Publishing

WebbThe strong optical confinement in silicon waveguides is an attractive property as it lowers the pump power required for the onset of Raman scattering. The SiGe material system is … WebbStimulated Raman emission in the visible has been observed in glass-fiber optical waveguides. Even though the Raman cross section is quite small, relatively low …

Raman gain in glass optical waveguide

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WebbAbstract. Optical fibers can exhibit wavelength conversion and other nonlinear optical effects at powers less than one watt. The reason has little to do with the glass in the … Webb21 dec. 2016 · When we set slope of Raman gain (T R) = 1 ps, the theoretically obtained spectral bandwidth at −30 dB level is 140, 240, 860 and 940 nm at P peak = 120, 220, 280 …

Webb22 okt. 2003 · Stimulated Raman emission in the visible has been observed in glass‐fiber optical waveguides. Even though the Raman cross section is quite small, relatively low threshold for Raman emission can be achieved because high optical power densities are maintained over long lengths of waveguide. The broad stimulated gain bandwidths … WebbRaman gain is optical gain (amplification) arising from stimulated Raman scattering. It can occur in transparent solid media (e.g. optical fibers ), liquids and gases under the …

Webb27 nov. 2012 · For crystalline silicon, the gain profile is expected to be centred at 1,541.6 nm for the 1,427 nm pump and the 521 cm −1 optical phonon frequency; therefore, to measure the Raman gain in ... WebbA Raman amplifier is an optical amplifier based on Raman gain, which results from the effect of stimulated Raman scattering. The Raman-active medium is often an optical fiber (possibly a highly nonlinear fiber ), …

WebbThe small signal Raman gain in a single‐mode glass waveguide amplifier has been measured directly. The measured gain is in good agreement with that calculated from …

Webb21 dec. 2016 · In this paper, we characterize the nonlinear optical properties of GeSbS glasses, and show negligible nonlinear losses at 1.55 μm. Using self - phase modulation experiments, we characterize a waveguide nonlinear parameter of 7 W -1 /m and nonlinear refractive index of 3.71 × 10 -18 m 2 /W. GeSbS waveguides are used to generate … death metal 7 reviewWebb22 juni 2006 · Jones, R. et al. Net continuous wave optical gain in a low loss silicon-on-insulator waveguide by stimulated Raman scattering. Opt. Express 13 , 519–525 (2005) gêneses it consultingWebb1 okt. 2011 · We have measured the absolute Raman gain spectrum in short fluoride soft glass fibers with a pump wavelength of 1650 nm . We found a peak gain of g R = 4.0 ± 2 × 10 − 14 m W − 1 . geneses clinic saWebbThe Raman scattering of light is one of the oldest and most well-studied optical phenomena. It was discovered more than 70 years ago and was named after one of the authors of this discovery. In 1928 C. V. Raman and K. S. Krishnan published the paper in which they described light scattering in liquids, the frequency of the scattering light … geneseo youth softballWebb10 juli 2024 · Femtosecond-laser (fs) waveguide writing in glass is a promising fabrication technique for integrated optics, due to its versatility to rapidly direct-write complex structures with fine precision ... gêneses it consulting cnpjWebb20 jan. 2024 · We report on guided-wave up-conversion luminescence in femtosecond laser writing cladding waveguides in Er3+/Yb3+ co-doped phosphate glass. The waveguides were fabricated with 30-μm- and 100-μm-diameter of the guiding cores. The guiding properties of waveguides have been investigated at 633 nm by end face coupling of free … gene septic tank cleaningWebbMeasurement of the Raman gain spectrum of optical fibers. The stimulated Raman gain spectrum of optical fibers has been measured down to 6 cm (-1) by means of short … geneses prime pty ltd