Head:         Dr. Ricardo Duchowicz Members:                   • Dra. Nélida Russo                   • Dr. Christian Cuadrado Laborde                   • Dr. Pablo Costanzo Caso                   • Ing. Sergio Noriega                   • Ing. Laureano Bulus-Rossini                   • Ing. Emanuel Paulucci                   • Ing. Claudio Lambert                   • Sr. Augusto Mantesa (colaborador)

History

Work topics

• Study of photo physical processes in doped fibers.
• Analysis, theoretical modeling and development of pulsed and CW fiber lasers.
• Analysis of light pulse propagation in guided media : Study of linear and non-linear processes.
• Development of sensing devices based on optical fibers.
• Design and development of Fiber Bragg Gratings.
• Optical communications systems and networks (WDM, TDM, PON, FTTx, CATV, FC).>
• Space-temporal processing with photonic devices in the time and the frequency domain.
• Design and development of dispersion compensation filters, and gain equalizers of EDFAs.
• Optical modulation techniques.
• Pulse compression and generation.

Latest works

• High frequency fiber laser emission generated by pump spiking.
  Nélida A. Russo, Ricardo Duchowicz
  Opt. Comm. 281, 3532-3537 (2008).
• Distortion in optical pulse equalization through phase modulators and dispersive transmission
  Pablo A. Costanzo-Caso, Christian Cuadrado-Laborde, Ricardo Duchowicz, Enrique E. Sicre
  Opt. Comm.281, 4001–4007 (2008).
• Ultrafast Optical Temporal Processing Using Phase-Space Signal Representations
  C. Cuadrado-Laborde, P. A. Costanzo-Caso, R. Duchowicz, E. E. Sicre.
  Chapter 10 in Trends In Optics Research, ISBN 978-1-60021-736-4, 1-60021-736-2. Editor: Paul V. Gallico, pp. 477-522, Nova Science Publishers, Inc, 2007.
• Temporal Montgomery Filtering Applied For Producing Pulse Reshaping In Dispersive Transmission
  Cuadrado-Laborde, Christian; Costanzo-Caso, Pablo A; Duchowicz, Ricardo; Sicre, Enrique E. Appl. Opt. 46, 5062-5067 (2007).
• Periodic pulse train conformati­on based on the temporal Radon-Wigner transform.
  Christian Cuadrado-Laborde, Pablo Costanzo-Caso, Ricardo Duchowicz, Enrique E. Sicre.
  Opt. Comm. 275, 94-103 (2007).
• Polymerization shrinkage of a resin composite determined by a fiber optic fizeau interferometer
  Gustavo Arenas, Sergio Noriega, Claudia Vallo, Ricardo Duchowicz
  Opt. Commun. 271, 581-586 (2007).
• Pulse propagation analysis based on the temporal radon-wigner transform
  Christian Cuadrado-Laborde, Pablo A. Costanzo-Caso, Ricardo Duchowicz, Enrique E. Sicre Opt. Commun.266, 32-38 (2006).
• Temporal talbot effect applied to determine dispersion parameters
  Christian Cuadrado-Laborde, Pablo A. Costanzo-Caso, Ricardo Duchowicz, Enrique E. Sicre
  Opt. Commun.260, 528-534 (2006)
• All-fibre actively q-switched yb-doped laser
  T.V. Andersen, P. Pérez-Millán, S.R. Keiding, S. Agger, R. Duchowicz, M.V. Andrés
  Opt. Commun. 260, 251-256 (2006)
• Q-switched all-fiber laser based on magnetostriction modulation of a bragg grating. Pérez-Millán, P; Díez, A; Andrés, M; Zalvidea, D; Duchowicz, R
  Optics Express 13, 5046-5051 (2005)
• High-repetition rate acoustic-induced q-switched all-fiber laser
  D. Zalvidea, N.A. Russo, R. Duchowicz, M. Delgado-Pinar, A. Díez, J.L. Cruz, M.V. Andrés
  Optics Comm. 244, 315-319 (2005)
• Temporal transformation of periodic incoherent ultrashort light pulses by chirped bragg gratings
  Zalvidea, Dobryna; Duchowicz, Ricardo; Sicre, Enrique E
  App. Opt. 43, 3005-3009 (2004)
• Simple high resolution wavelength monitor based on a fiber bragg grating
  Mora, José; Cruz, José Luis; Andrés, Miguel V; Duchowicz, Ricardo
  App. Opt. 43, 744-749(2004)
• Q-switching of an erbium doped fiber laser modulated by a bragg-grating fixed to a pzt
  R Duchowicz, N A Russo, E Sicre and M V Andrés
  Journal of Optics A: Pure and Applied Optics 5, S216-S220 (2003)

Collaboration with other institutions and Research groups

• Dep. de Física Aplicada, Universidad de Valencia, España; Dr. Miguel Andrés.
• Laboratorio de Láser, Facultad de Ingeniería, Universidad Nacional de Mar del Plata; Ing. Gustavo Arenas.
• Facultad de Ingeniería y Ciencias Exactas, Universidad Argentina de la Empresa (UADE), Buenos Aires; Dr. Enrique Sicre.
  
                                                       

Available equipment

• An optical fiber analizer (OTDR). Ando
• A monochromator. CVI Digikrom (0.48 m focal distance and y 0.03 nm resolution)
• A digital Oscilloscope. Hewlett & Packard (500 MHz, 2 Gsample/sec).
• An optical power meter equipment Wander & Goltermann, OMS-200,( 800 to 1600 nm, dynamic range: +13 a –110 dBm and +-2% accuracy traced at PTB).
• A pyroelectric device for measuring optical power. Laser Probe (spectral range 250 to 2000nm and  +- 1% accuracy, traced at NIST).
• An optical fiber connecter, Ericsson.
• A tunable laser, Photonetics (Spectral range: 1480 – 1550nm.)
• Power-regulated laser source, with 1550 nm y 1310 nm emission, (Ando).
• He-Ne lasers.
• Photodetectors for different spectral regions.
• Anti-vibrating table. Melles Griot.
• Semiconductor laser modules with continous emition in 980 nm.
  
                                                       

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