The Experts below are selected from a list of 318 Experts worldwide ranked by ideXlab platform

Ignacio Esquivias - One of the best experts on this subject based on the ideXlab platform.

  • emission characteristics of a 1 5 mu m all semiconductor tapered Master Oscillator power amplifier
    IEEE Photonics Journal, 2015
    Co-Authors: M. Vilera, J. M. G. Tijero, A Perezserrano, Ignacio Esquivias
    Abstract:

    We present experimental results on the emission characteristics of a 1.5- $\mu$ m distributed feedback (DFB) tapered Master Oscillator power amplifier (MOPA) in a wide range of steady-state injection conditions, showing different dynamical behaviors. A detailed analysis of the optical and radio-frequency spectra has allowed the identification of three different emission regimes: i) stable amplified DFB emission, but with wavelength jumps when sweeping the injection currents; ii) multimode Fabry–Perot (FP) operation of the complete MOPA cavity; and iii) self-pulsed operation at frequencies between 5 and 8 GHz. The quasi-periodic occurrence of these emission regimes as a function of the injected currents is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes. The physical origin of the wavelength jumps and of the alternation between regimes is discussed.

  • Monolithic integration of a high power semiconductor Master Oscillator Power Amplifier
    2015 IEEE Photonics Conference (IPC), 2015
    Co-Authors: M. Faugeron, M. Vilera, J. M. G. Tijero, Ignacio Esquivias, A. Perez-serrano, Michel Krakowski, F. Van Dijk
    Abstract:

    We present a high power semiconductor Master Oscillator Power Amplifier monolithically integrated on InP, which includes a modulation section. This device can be used for random-modulation-continuous wave lidar systems or free-space communications.

  • Emission Characteristics of a 1.5- $\mu$ m All-Semiconductor Tapered Master Oscillator Power Amplifier
    IEEE Photonics Journal, 2015
    Co-Authors: M. Vilera, J. M. G. Tijero, A. Perez-serrano, Ignacio Esquivias
    Abstract:

    We present experimental results on the emission characteristics of a 1.5- $\mu$ m distributed feedback (DFB) tapered Master Oscillator power amplifier (MOPA) in a wide range of steady-state injection conditions, showing different dynamical behaviors. A detailed analysis of the optical and radio-frequency spectra has allowed the identification of three different emission regimes: i) stable amplified DFB emission, but with wavelength jumps when sweeping the injection currents; ii) multimode Fabry–Perot (FP) operation of the complete MOPA cavity; and iii) self-pulsed operation at frequencies between 5 and 8 GHz. The quasi-periodic occurrence of these emission regimes as a function of the injected currents is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes. The physical origin of the wavelength jumps and of the alternation between regimes is discussed.

  • Wavelength Jumps and Multimode Instabilities in Integrated Master Oscillator Power Amplifiers at 1.5 $\mu$ m: Experiments and Theory
    IEEE Journal of Selected Topics in Quantum Electronics, 2015
    Co-Authors: A. Perez-serrano, M. Vilera, J. M. G. Tijero, Ignacio Esquivias, Julien Javaloyes, Salvador Balle
    Abstract:

    We analyze the large ( $>$ 10 nm) and abrupt jumps in emission wavelength, together with the multimode instabilities associated with them, which are observed in monolithically integrated Master Oscillator power amplifiers emitting at 1.5 $\mu$ m. The physical origin of such phenomena is investigated in the framework of a travelling-wave model which phenomenologically incorporates thermal effects via self and cross-heating of the different sections of the device. The occurrence of the wavelength jumps and the instabilities as a function of the injected currents in the two sections is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes.

  • Emission regimes in a distributed feedback tapered Master-Oscillator power-amplifier at 1.5 μm
    Semiconductor Lasers and Laser Dynamics VI, 2014
    Co-Authors: M. Vilera, J. M. G. Tijero, Antonio Consoli, S. Aguilera, Pawel Adamiec, Ignacio Esquivias
    Abstract:

    Integrated Master-Oscillator power amplifiers driven under steady-state injection conditions are known to show a complex dynamics resulting in a variety of emission regimes. We present experimental results on the emission characteristics of a 1.5 μm distributed feedback tapered Master-Oscillator power-amplifier in a wide range of steady-state injection conditions, showing different dynamic behaviors. The study combines the optical and radio-frequency spectra recorded under different levels of injected current into the Master Oscillator and the power amplifier sections. Under low injection current of the Master Oscillator the correlation between the optical and radio-frequency spectral maps allows to identify operation regimes in which the device emission arises from either the Master Oscillator mode or from the compound cavity modes allowed by the residual reflectance of the amplifier front facet. The quasi-periodic occurrence of these emission regimes as a function of the amplifier current is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes. Under high injection current of the Master Oscillator, two different regimes alternate quasi-periodically as a function of the injected current in the power amplifier: a stable regime with a single mode emission at the Master Oscillator frequency, and an unstable and complex self-pulsating regime showing strong peaks in the radio-frequency spectra as well as multiple frequencies in the optical spectra.

M. Vilera - One of the best experts on this subject based on the ideXlab platform.

  • emission characteristics of a 1 5 mu m all semiconductor tapered Master Oscillator power amplifier
    IEEE Photonics Journal, 2015
    Co-Authors: M. Vilera, J. M. G. Tijero, A Perezserrano, Ignacio Esquivias
    Abstract:

    We present experimental results on the emission characteristics of a 1.5- $\mu$ m distributed feedback (DFB) tapered Master Oscillator power amplifier (MOPA) in a wide range of steady-state injection conditions, showing different dynamical behaviors. A detailed analysis of the optical and radio-frequency spectra has allowed the identification of three different emission regimes: i) stable amplified DFB emission, but with wavelength jumps when sweeping the injection currents; ii) multimode Fabry–Perot (FP) operation of the complete MOPA cavity; and iii) self-pulsed operation at frequencies between 5 and 8 GHz. The quasi-periodic occurrence of these emission regimes as a function of the injected currents is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes. The physical origin of the wavelength jumps and of the alternation between regimes is discussed.

  • Monolithic integration of a high power semiconductor Master Oscillator Power Amplifier
    2015 IEEE Photonics Conference (IPC), 2015
    Co-Authors: M. Faugeron, M. Vilera, J. M. G. Tijero, Ignacio Esquivias, A. Perez-serrano, Michel Krakowski, F. Van Dijk
    Abstract:

    We present a high power semiconductor Master Oscillator Power Amplifier monolithically integrated on InP, which includes a modulation section. This device can be used for random-modulation-continuous wave lidar systems or free-space communications.

  • Emission Characteristics of a 1.5- $\mu$ m All-Semiconductor Tapered Master Oscillator Power Amplifier
    IEEE Photonics Journal, 2015
    Co-Authors: M. Vilera, J. M. G. Tijero, A. Perez-serrano, Ignacio Esquivias
    Abstract:

    We present experimental results on the emission characteristics of a 1.5- $\mu$ m distributed feedback (DFB) tapered Master Oscillator power amplifier (MOPA) in a wide range of steady-state injection conditions, showing different dynamical behaviors. A detailed analysis of the optical and radio-frequency spectra has allowed the identification of three different emission regimes: i) stable amplified DFB emission, but with wavelength jumps when sweeping the injection currents; ii) multimode Fabry–Perot (FP) operation of the complete MOPA cavity; and iii) self-pulsed operation at frequencies between 5 and 8 GHz. The quasi-periodic occurrence of these emission regimes as a function of the injected currents is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes. The physical origin of the wavelength jumps and of the alternation between regimes is discussed.

  • Wavelength Jumps and Multimode Instabilities in Integrated Master Oscillator Power Amplifiers at 1.5 $\mu$ m: Experiments and Theory
    IEEE Journal of Selected Topics in Quantum Electronics, 2015
    Co-Authors: A. Perez-serrano, M. Vilera, J. M. G. Tijero, Ignacio Esquivias, Julien Javaloyes, Salvador Balle
    Abstract:

    We analyze the large ( $>$ 10 nm) and abrupt jumps in emission wavelength, together with the multimode instabilities associated with them, which are observed in monolithically integrated Master Oscillator power amplifiers emitting at 1.5 $\mu$ m. The physical origin of such phenomena is investigated in the framework of a travelling-wave model which phenomenologically incorporates thermal effects via self and cross-heating of the different sections of the device. The occurrence of the wavelength jumps and the instabilities as a function of the injected currents in the two sections is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes.

  • Emission regimes in a distributed feedback tapered Master-Oscillator power-amplifier at 1.5 μm
    Semiconductor Lasers and Laser Dynamics VI, 2014
    Co-Authors: M. Vilera, J. M. G. Tijero, Antonio Consoli, S. Aguilera, Pawel Adamiec, Ignacio Esquivias
    Abstract:

    Integrated Master-Oscillator power amplifiers driven under steady-state injection conditions are known to show a complex dynamics resulting in a variety of emission regimes. We present experimental results on the emission characteristics of a 1.5 μm distributed feedback tapered Master-Oscillator power-amplifier in a wide range of steady-state injection conditions, showing different dynamic behaviors. The study combines the optical and radio-frequency spectra recorded under different levels of injected current into the Master Oscillator and the power amplifier sections. Under low injection current of the Master Oscillator the correlation between the optical and radio-frequency spectral maps allows to identify operation regimes in which the device emission arises from either the Master Oscillator mode or from the compound cavity modes allowed by the residual reflectance of the amplifier front facet. The quasi-periodic occurrence of these emission regimes as a function of the amplifier current is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes. Under high injection current of the Master Oscillator, two different regimes alternate quasi-periodically as a function of the injected current in the power amplifier: a stable regime with a single mode emission at the Master Oscillator frequency, and an unstable and complex self-pulsating regime showing strong peaks in the radio-frequency spectra as well as multiple frequencies in the optical spectra.

Ravil Yu. Abdulsabirov - One of the best experts on this subject based on the ideXlab platform.

  • Ultraviolet short pulses from an all-solid-state Ce:LiCAF Master-Oscillator power-amplifier system.
    Optics letters, 1997
    Co-Authors: Nobuhiko Sarukura, Zhenlin Liu, Mark A. Dubinskii, Vadim V. Semashko, Alexander K. Naumov, Hideyuki Ohtake, Yusaburo Segawa, Stella L. Korableva, Ravil Yu. Abdulsabirov
    Abstract:

    We have developed an all-solid-state Master-Oscillator-power-amplifier system employing Ce:LiCAF, a new degradation-free tunable ultraviolet laser medium pumped by the fourth harmonic of conventional 10-ns Q -switched Nd:YAG lasers. The low- Q , short-cavity Ce:LiCAF Master Oscillator produced a satellite-free 1-ns pulse under appropriate pumping-fluence control. 18% energy extraction with sufficient gain was achieved in a single-stage, confocal, double-pass amplifier. As a result, 289-nm, 1-ns, 14-mJ pulses were efficiently obtained from this simple laser system.

Nobuhiko Sarukura - One of the best experts on this subject based on the ideXlab platform.

  • Ultraviolet short pulses from an all-solid-state Ce:LiCAF Master-Oscillator power-amplifier system.
    Optics letters, 1997
    Co-Authors: Nobuhiko Sarukura, Zhenlin Liu, Mark A. Dubinskii, Vadim V. Semashko, Alexander K. Naumov, Hideyuki Ohtake, Yusaburo Segawa, Stella L. Korableva, Ravil Yu. Abdulsabirov
    Abstract:

    We have developed an all-solid-state Master-Oscillator-power-amplifier system employing Ce:LiCAF, a new degradation-free tunable ultraviolet laser medium pumped by the fourth harmonic of conventional 10-ns Q -switched Nd:YAG lasers. The low- Q , short-cavity Ce:LiCAF Master Oscillator produced a satellite-free 1-ns pulse under appropriate pumping-fluence control. 18% energy extraction with sufficient gain was achieved in a single-stage, confocal, double-pass amplifier. As a result, 289-nm, 1-ns, 14-mJ pulses were efficiently obtained from this simple laser system.

  • Ultraviolet picosecond pulses from an all-solid-state Ce:LiSAF Master Oscillator and Ce:LiCAF power amplifier system
    Advanced Solid State Lasers, 1996
    Co-Authors: Zhenlin Liu, Nobuhiko Sarukura, Shinji Izumida, Yusaboro Segawa, Mark A. Dubinskii, Vadim V. Semashko, Alexander K. Naumov, L. S. Korableva, Ravil Yu. Abdulsabirpv
    Abstract:

    290-nm, 590-psec, 300-µJ pulses are generated from a compact Ce:LiSAF/Ce:LiCAF Master Oscillator and power amplifier system pumped by the fourth harmonic of a conventional Nd:YAG laser. Ultraviolet picosecond pulses from an all-solid-state Ce:LiSAF/Ce:LiCAF Master Oscillator and power amplifier system.

J. M. G. Tijero - One of the best experts on this subject based on the ideXlab platform.

  • emission characteristics of a 1 5 mu m all semiconductor tapered Master Oscillator power amplifier
    IEEE Photonics Journal, 2015
    Co-Authors: M. Vilera, J. M. G. Tijero, A Perezserrano, Ignacio Esquivias
    Abstract:

    We present experimental results on the emission characteristics of a 1.5- $\mu$ m distributed feedback (DFB) tapered Master Oscillator power amplifier (MOPA) in a wide range of steady-state injection conditions, showing different dynamical behaviors. A detailed analysis of the optical and radio-frequency spectra has allowed the identification of three different emission regimes: i) stable amplified DFB emission, but with wavelength jumps when sweeping the injection currents; ii) multimode Fabry–Perot (FP) operation of the complete MOPA cavity; and iii) self-pulsed operation at frequencies between 5 and 8 GHz. The quasi-periodic occurrence of these emission regimes as a function of the injected currents is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes. The physical origin of the wavelength jumps and of the alternation between regimes is discussed.

  • Monolithic integration of a high power semiconductor Master Oscillator Power Amplifier
    2015 IEEE Photonics Conference (IPC), 2015
    Co-Authors: M. Faugeron, M. Vilera, J. M. G. Tijero, Ignacio Esquivias, A. Perez-serrano, Michel Krakowski, F. Van Dijk
    Abstract:

    We present a high power semiconductor Master Oscillator Power Amplifier monolithically integrated on InP, which includes a modulation section. This device can be used for random-modulation-continuous wave lidar systems or free-space communications.

  • Emission Characteristics of a 1.5- $\mu$ m All-Semiconductor Tapered Master Oscillator Power Amplifier
    IEEE Photonics Journal, 2015
    Co-Authors: M. Vilera, J. M. G. Tijero, A. Perez-serrano, Ignacio Esquivias
    Abstract:

    We present experimental results on the emission characteristics of a 1.5- $\mu$ m distributed feedback (DFB) tapered Master Oscillator power amplifier (MOPA) in a wide range of steady-state injection conditions, showing different dynamical behaviors. A detailed analysis of the optical and radio-frequency spectra has allowed the identification of three different emission regimes: i) stable amplified DFB emission, but with wavelength jumps when sweeping the injection currents; ii) multimode Fabry–Perot (FP) operation of the complete MOPA cavity; and iii) self-pulsed operation at frequencies between 5 and 8 GHz. The quasi-periodic occurrence of these emission regimes as a function of the injected currents is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes. The physical origin of the wavelength jumps and of the alternation between regimes is discussed.

  • Wavelength Jumps and Multimode Instabilities in Integrated Master Oscillator Power Amplifiers at 1.5 $\mu$ m: Experiments and Theory
    IEEE Journal of Selected Topics in Quantum Electronics, 2015
    Co-Authors: A. Perez-serrano, M. Vilera, J. M. G. Tijero, Ignacio Esquivias, Julien Javaloyes, Salvador Balle
    Abstract:

    We analyze the large ( $>$ 10 nm) and abrupt jumps in emission wavelength, together with the multimode instabilities associated with them, which are observed in monolithically integrated Master Oscillator power amplifiers emitting at 1.5 $\mu$ m. The physical origin of such phenomena is investigated in the framework of a travelling-wave model which phenomenologically incorporates thermal effects via self and cross-heating of the different sections of the device. The occurrence of the wavelength jumps and the instabilities as a function of the injected currents in the two sections is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes.

  • Emission regimes in a distributed feedback tapered Master-Oscillator power-amplifier at 1.5 μm
    Semiconductor Lasers and Laser Dynamics VI, 2014
    Co-Authors: M. Vilera, J. M. G. Tijero, Antonio Consoli, S. Aguilera, Pawel Adamiec, Ignacio Esquivias
    Abstract:

    Integrated Master-Oscillator power amplifiers driven under steady-state injection conditions are known to show a complex dynamics resulting in a variety of emission regimes. We present experimental results on the emission characteristics of a 1.5 μm distributed feedback tapered Master-Oscillator power-amplifier in a wide range of steady-state injection conditions, showing different dynamic behaviors. The study combines the optical and radio-frequency spectra recorded under different levels of injected current into the Master Oscillator and the power amplifier sections. Under low injection current of the Master Oscillator the correlation between the optical and radio-frequency spectral maps allows to identify operation regimes in which the device emission arises from either the Master Oscillator mode or from the compound cavity modes allowed by the residual reflectance of the amplifier front facet. The quasi-periodic occurrence of these emission regimes as a function of the amplifier current is interpreted in terms of a thermally tuned competition between the modes of the Master Oscillator and the compound cavity modes. Under high injection current of the Master Oscillator, two different regimes alternate quasi-periodically as a function of the injected current in the power amplifier: a stable regime with a single mode emission at the Master Oscillator frequency, and an unstable and complex self-pulsating regime showing strong peaks in the radio-frequency spectra as well as multiple frequencies in the optical spectra.