Listar por autoría "44c3a4de-8fe9-4ee7-8093-6a4803c963a2"

Mostrando ítems 1-9 de 9

    • closedAccess   25 Million Sensing Measurements Per Second Using Quasi-Integer Ratio Time-Expanded φOTDR 

      Soriano-Amat, Miguel; Martins, Hugo; Durán, Vicente; Martin-Lopez, Sonia; Gonzalez-Herraez, Miguel; Fernández Ruiz, María del Rosario Optica Publishing Group (2022)
      We demonstrate the detection of strain perturbations along a 500 m optical fiber with 2 cm spatial resolution and 1 kHz sampling frequency via quasi-integer-ratio time-expanded φOTDR, requiring less than 100 MHz photodetection ...

    • openAccess   Common-Path Dual-Comb Spectroscopy Using a Single Electro-Optic Modulator 

      Soriano-Amat, Miguel; Soto, Marcelo; Durán, Vicente; Martins, Hugo; Martin-Lopez, Sonia; Gonzalez-Herraez, Miguel; Fernández Ruiz, María del Rosario IEEE (2020-09-15)
      Dual frequency comb (DFC) spectroscopy using electro-optic comb generators stands out for its flexibility, easy implementation, and low cost. Typically, two combs with different line spacing are generated from a common ...

    • openAccess   Dual electro-optic comb spectroscopy using a single pseudo-randomly driven modulator 

      Durán, Vicente; Escobar-Vera, Camilo; Soriano-Amat, Miguel; Martins, Hugo; Martin-Lopez, Sonia; Gonzalez-Herraez, Miguel; Fernández Ruiz, María del Rosario Optica Publishing Group (2022-07-04)
      We present a dual-comb scheme based on a single intensity modulator driven by inexpensive board-level pseudo-random bit sequence generators. The result is a simplified architecture that exhibits a long mutual coherence ...

    • closedAccess   Frequency Stability Requirements in Quasi-Integer-Ratio Time-Expanded Phase-Sensitive OTDR 

      Soriano-Amat, Miguel; Martins, Hugo; Durán, Vicente; Fermoso, Pablo; Martin-Lopez, Sonia; Gonzalez-Herraez, Miguel; Fernández Ruiz, María del Rosario IEEE (2023-01-15)
      Time-expanded phase sensitive (TE-ϕ)OTDR is a recently reported technique for distributed fiber sensing that relies on the use of an electro-optic dual frequency comb (DFC) scheme. A distinctive feature of this approach ...

    • closedAccess   Quadratic phase coding for SNR improvement in time-expanded phase-sensitive OTDR 

      Soriano-Amat, Miguel; Martins, Hugo; Durán, Vicente; Martin-Lopez, Sonia; Gonzalez-Herraez, Miguel; Fernández Ruiz, María del Rosario Optical Society of America (2021-09-01)
      Time-expanded phase-sensitive optical time-domain reflectometry (TE − 8OTDR) is a dual-comb-based distributed optical fiber sensing technique capable of providing centimeter scale resolution while maintaining a remarkably low ...

    • closedAccess   Spatially resolved dual-comb sensing using a single electro-optic modulator 

      Escobar-Vera, Camilo; Soriano-Amat, Miguel; MORENO OYERVIDES, ALDO LUIS; Khan, Farid Ullah; Bonilla-Manrique, Oscar E.; Fernández Ruiz, María del Rosario; Martin-Lopez, Sonia; Durán, Vicente; Gonzalez-Herraez, Miguel; Martín-Mateos, Pedro Optica Publishing Group (2022)
      We present a dual-comb imaging system based on a single pseudo-randomly driven electro-optic modulator. The result is a cost-efficient and robust fiber-based scheme that can be employed to perform spatially resolved ...

    • openAccess   Time Expansion in Distributed Optical Fiber Sensing 

      Fernández Ruiz, María del Rosario; Soriano-Amat, Miguel; Durán, Vicente; Martins, Hugo; Martin-Lopez, Sonia; Gonzalez-Herraez, Miguel Institute of Electrical and Electronics Engineers (2023-05-01)
      Distributed optical fiber sensing (DOFS) technology has recently experienced an impressive growth in various fields including security, structural monitoring and seismology, among others. This expansion has been accompanied ...

    • openAccess   Time-expanded phase-sensitive optical time-domain reflectometry 

      Soriano-Amat, Miguel; Martins, Hugo; Durán, Vicente; Costa, Luís; Martin-Lopez, Sonia; Gonzalez-Herraez, Miguel; Fernández Ruiz, María del Rosario Light: Science & Applications (2021-03-09)
      Phase-sensitive optical time-domain reflectometry (ΦOTDR) is a well-established technique that provides spatio-temporal measurements of an environmental variable in real time. This unique capability is being leveraged in ...

    • openAccess   Time-expanded φOTDR using low-frequency electronics 

      Soriano-Amat, Miguel; Martins, Hugo; Martin-Lopez, Sonia; Gonzalez-Herraez, Miguel; Fernández Ruiz, María del Rosario; Durán, Vicente Optica Publishing Group (2023-01)
      Time expanded phase-sensitive optical time-domain reflectometry (TE-φOTDR) is a recently reported technique for distributed optical fiber sensing based on the interference of two mutually coherent optical frequency combs. ...