Publications (7) View all
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Article: Single-longitudinal mode laser structure based on a very narrow filtering technique.
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ABSTRACT: A narrow filtering technique based on the spectral overlapping of two uniform FBGs and applied to obtain a Single Longitudinal Mode (SLM) laser is proposed and demonstrated in this work. The two FBGs are spectrally detuned to reduce their coincident reflection response narrowing the equivalent filter bandwidth. A proof-of-concept linear laser has been built and tested exhibiting SLM operation even with temperature and strain variations.Optics Express 04/2013; 21(8):10289-94. · 3.59 Impact Factor -
Article: Multi-Wavelength Fiber Laser in Single-Longitudinal-Mode Operation using a Photonic Crystal Fiber Sagnac Interferometer
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ABSTRACT: In this paper, we report a new configuration of a tunable multi-wavelength erbium-doped fiber laser based on the commercial optical multiplexers and a Sagnac interferometer which includes a section of a high-birefringent photonic crystal fiber. Four-wavelength laser emission lines were obtained simultaneously in single-longitudinal mode operation showing a power instability lower than 1 dB, and an optical signal-to-noise ratio higher than 65 dB for all the emitted wavelengths. This proposed configuration allows the individual control of the loss of each channel of the laser and because of it is based on the commercial ITU-grid multiplexers, the laser is adapted to the telecommunications channel’s normative.Applied Physics B 03/2013; 110(3):303-308. · 2.19 Impact Factor -
Article: Multi-wavelength fiber laser in single-longitudinal mode operation using a photonic crystal fiber Sagnac interferometer
Applied Physics B: Lasers and Optics. 01/2013; -
Conference Proceeding: High-sensitivity PCF sensing head for strain measurement
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ABSTRACT: An original photonic crystal fiber based sensing head is proposed for strain measurement. The sensor comprises a Hi-Bi PCF sensing head to measure in reflection using polarimetry. A background study of the sensing head polarization state signals is conducted utilizing an optical backscatter reflectometer. Using a more accessible set up, one of the Hi-Bi PCF polarization signals is isolated allowing to accurately measure strain variations. In-reflection polarimetric strain sensing is obtained with a sensitivity of ~7.6 dB/1000μm and with the breakage point at 5500 με.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.OFS2012 22nd International Conference on Optical Fiber Sensors, Beijing, China; 10/2012 -
Article: Low noise dual-wavelength erbium fiber laser in single-longitudinal-mode operation
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ABSTRACT: A new stable dual-wavelength fiber ring laser based on erbium doped fiber amplification is reported. The laser is based on ring resonators and employs fiber Bragg gratings to select the operation wavelengths. The topology of the laser has a significant influence in its performance: allowing an independent control of the losses and achieving a low noise configuration. As a result, it is experimentally demonstrated that both emission lines work in single-longitudinal-mode operation and the topology offers a better stability and higher optical signal-to-noise ratios than similar configurations.Applied Physics B 03/2012; 106(3):563-567. · 2.19 Impact Factor
