• 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 ...
    • closedAccess   Lead-free FASnI3 laser amplifiers integrated in flexible waveguides 

      Suárez, Isaac; Chirvony, Vladimir; Sánchez-Díaz, Jesús; Sánchez, Rafael S.; Mora-Sero, Ivan; Martínez-Pastor, Juan P. Optica Publishing Group (2022)
      A FASnI3 lead-free perovskite is integrated in a flexible waveguide to demonstrate Amplified Spontaneous Emission. An extremely low threshold, 1 µJ/cm2, is observed together with the formation of narrow random lasing lines ...
    • 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 ...