Optical signal processing in Radar systems

Tonda-Goldstein, S.; Dolfi, Daniel; Monsterleet, Aymeric; Formont, S.; Chazelas, J.; Huignard, Jean‐Pierre

doi:10.1109/tmtt.2005.863059

Cited by 74 publications

(35 citation statements)

References 9 publications

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“…A coherent source emitting two optical frequencies with a difference tunable over a wide range and having a high degree of correlation between their fluctuations could find applications in domains such as ultra-stable atomic clocks [1,2], pump-probe experiments, generation of high-purity optically-carried radio frequency (RF) signals useful for microwave photonics [3,4], and metrology [5]. The dual-frequency laser, sustaining two orthogonal linear polarizations with a tunable frequency difference can perfectly fit the above mentioned applications.…”

Section: Introductionmentioning

confidence: 99%

Intensity- and phase-noise correlations in a dual-frequency vertical-external-cavity surface-emitting laser operating at telecom wavelength

Baili

Bouchoule³

et al. 2015

Phys. Rev. A

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The amplitude and phase noises of a dual-frequency vertical-external-cavity surface-emitting laser (DF-VECSEL) operating at telecom wavelength are theoretically and experimentally investigated in detail. In particular, the spectral behavior of the correlation between the intensity noises of the two modes of the DF-VECSEL is measured. Moreover, the correlation between the phase noise of the radio-frequency (RF) beatnote generated by optical mixing of the two laser modes with the intensity noises of the two modes is investigated. All these spectral behaviors of noise correlations are analyzed for two different values of the nonlinear coupling between the laser modes. We find that to describe the spectral behavior of noise correlations between the laser modes, it is of utmost importance to have a precise knowledge about the spectral behavior of the pump noise, which is the dominant source of noise in the frequency range of our interest (10 kHz to 35 MHz). Moreover, it is found that the noise correlation also depends on how the spatially separated laser modes of the DF-VECSEL intercept the noise from a multi-mode fiber-coupled laser diode used for pumping both the laser modes. To this aim, a specific experiment is reported, which aims at measuring the correlations between different spatial regions of the pump beam. The experimental results are in excellent agreement with a theoretical model based on modified rate equations.

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Section: Introductionmentioning

confidence: 99%

Intensity- and phase-noise correlations in a dual-frequency vertical-external-cavity surface-emitting laser operating at telecom wavelength

Baili

Bouchoule³

et al. 2015

Phys. Rev. A

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“…These dual-frequency lasers are very useful for microwave photonics applications [14] such as to gener- * Electronic address: Fabien.Bretenaker@u-psud.fr ate high purity optically-carried tunable radio-frequency (RF) signals, which are essential for metrology, remote sensing, and analog communication applications [15][16][17][18]. Such dual-frequency oscillation has also been achieved in different kinds of solid-state lasers [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Influence of spin-dependent carrier dynamics on the properties of a dual-frequency vertical-external-cavity surface-emitting laser

Potapchuk

Bretenaker

2014

Phys. Rev. A

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The properties of a dual-frequency vertical external cavity surface emitting laser (VECSEL), in which two linear orthogonal polarization modes are oscillating simultaneously, are theoretically investigated. We derive a model based on the ideas introduced by San Miguel et al. [San Miguel, Feng, and Moloney, Phys. Rev. A 52, 1728 (1995)], taking into account the spin dynamics of the carriers inside the quantum well (QW) based gain medium of the dual-frequency VECSEL. This model is shown to succeed in describing quite a few properties of the dual-frequency VECSEL, such as the behavior of nonlinear coupling strength between the modes, the spectral behavior of intensity noises of the modes, and also the correlation between these intensity noises. A good agreement is found with experimental data. The variables associated with the spin dependent carrier dynamics can be adiabatically eliminated due to the class-A dynamical behavior of the considered laser which is based on a cm-long external cavity. This leads to a simple analytical description of the dynamics of the dual-frequency VECSEL providing a better understanding of the physics involved.

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“…Photonic components, providing compact size, large bandwidth, fast tunability, immunity to electromagnetic interference, and low weight, have been widely demonstrated in microwave systems. Microwave phase shifters are key components in many microwave applications, such as phased-array antennas [2] and microwave filters [3]. So far, several schemes for phase shifting, including wavelength conversion [4], stimulated Brillouin scattering [5], slow-light effects in semiconductor devices [6], and band-edge effects in photonic band-gap devices [7], have been reported.…”

Section: Introductionmentioning

confidence: 99%

Tunable Microwave Phase Shifter Based on Silicon-on-Insulator Microring Resonator

Liu

Xue

et al. 2010

IEEE Photon. Technol. Lett.

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Abstract-We demonstrate microwave phase shifters based on electrically tunable silicon-on-insulator microring resonators (MRRs). MRRs with different quality factors are fabricated and tested. A continuously tunable phase shift of up to 336 at a microwave frequency of 40 GHz is obtained using a high-quality-factor ( 28 000) MRR with only 1.6-mW power consumption. A quasi-linear phase shift in the range of 0 -204 at 40 GHz with a radio-frequency power variation less than 1.3 dB is also achieved by using a lower-quality-factor MRR.

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Optical signal processing in Radar systems

Cited by 74 publications

References 9 publications

Intensity- and phase-noise correlations in a dual-frequency vertical-external-cavity surface-emitting laser operating at telecom wavelength

Intensity- and phase-noise correlations in a dual-frequency vertical-external-cavity surface-emitting laser operating at telecom wavelength

Influence of spin-dependent carrier dynamics on the properties of a dual-frequency vertical-external-cavity surface-emitting laser

Tunable Microwave Phase Shifter Based on Silicon-on-Insulator Microring Resonator

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