Concept
Raman amplification
Related publications (63)
Raman fiber laser pumped by a semiconductor disk laser and mode locked by a semiconductor saturable absorber mirror
A 1.6 mu m mode-locked Raman fiber laser pumped by a 1480 nm semiconductor disk laser is demonstrated. Watt-level core pumping of the single-mode fiber Raman lasers with low-noise disk lasers together with semiconductor saturable absorber mirror mode locki ...
Optical Society of America2010Use of Fabry-Pérot lasers for simultaneous distributed strain and temperature sensing based on hybrid Raman and Brillouin scattering
Marcelo Alfonso Soto Hernandez
In this paper we propose the use of multi-longitudinal mode lasers, such as Fabry-Pérot (FP) lasers, for simultaneous distributed strain and temperature sensing based on hybrid Brillouin and Raman scattering. Fabry-Pérot lasers allow for high-power Raman i ...
2009Per-band link control transients protection in distributed fiber Raman amplifier cascades
Marcelo Alfonso Soto Hernandez
In this work we introduce the use of the per-band link control method in cascades of distributed fiber Raman amplifiers (DFRAs) for compensating power transients of WDM channels. By using two compensation channels, each one controlled by a proportional-int ...
IEEE20098 mW Fundamental Mode Output of Wafer-Fused VCSELs Emitting in the 1550-nm Band
Elyahou Kapon, Grigore Suruceanu, Alexandru Mereuta, Vladimir Iakovlev, Alexei Sirbu, Andrei Caliman
Record fundamental mode output power of 8mW at 0 degrees C and 6.5mW at room temperature is achieved with wafer-fused VCSELs incorporating regrown tunnel junction and emitting at the 1550nm waveband. (C) 2009 Optical Society of America ...
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009Redistribution of pump power and impairments in gain-equalized distributed fiber Raman amplifiers due to four-wave mixing and parametric amplification
Marcelo Alfonso Soto Hernandez
In this work, by using a comprehensive numerical model which rigorously describes the interaction between stimulated Raman scattering (SRS) and four-wave mixing (FWM), we verify that FWM processes, including depletion and parametric gain, generate a redist ...
200830-km spontaneous-Brillouin distributed temperature sensor employing Simplex-coding and low optical input power
Marcelo Alfonso Soto Hernandez
In this work we have applied optical pulse-coding technique to spontaneous Brillouin-based distributed temperature sensor (BDTS) based on the Landau-Placzek ratio (LPR). We experimentally show that pulse-coding applied to optical time domain reflectometry ...
IEEE2008Four wave mixing effects in gain-equalized distributed fiber raman amplifiers
Marcelo Alfonso Soto Hernandez
The degradation of the performance of distributed fiber Raman amplifiers (DFRAs) is shown to be dependent on the interaction between pump-pump four-wave mixing (FWM) and stimulated Raman scattering (SRS), by means of numerical simulations. We verify that F ...
IEEE2007Analysis of distributed temperature sensing based on Raman scattering using OTDR coding and discrete Raman amplification
Marcelo Alfonso Soto Hernandez
The behaviour of distributed temperature sensors based on spontaneous Raman scattering and coded OTDR (optical time domain reflectometry) is studied both theoretically and experimentally; in particular a high performance scheme has been implemented using a ...
2007Structural phase transition in two-dimensional tetramer-cuprate Na5RbCu4(AsO4)4Cl2
Raman scattering and optical birefringence were used in to investigate a low-temp. phase transition in a single crystal of the 2D Na5RbCu4(AsO4)4Cl2. Phonon anomalies point to a 1st-order nature of the transition. The obsd. transition is most probably rela ...
2007Impairments in Gain-Equalized Distributed Fiber Raman Amplifiers due to Four-Wave Mixing and Parametric Amplification Processes
Marcelo Alfonso Soto Hernandez
In this work, by means of numerical simulations, we verify that four‐wave mixing (FWM) processes, including depletion and parametric gain, generate a redistribution of pump power in distributed fiber Raman amplifiers (DFRAs). As a consequence of pump‐pump ...
AIP2007