Relative intensity noise of multiwavelength fibre laser

Poëtte, Julien; Blin, S.; Brochu, Guillaume; Bramerie, Laurent; Slavı́k, Radan; Simon, Jean‐Claude; LaRochelle, Sophie; Besnard, Pascal

doi:10.1049/el:20040539

Cited by 14 publications

(7 citation statements)

References 6 publications

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“…This result implies that any pump source can be made finer by exploiting its S1 or S2 component, which is obtained with only 30 mW pump power in our BFL cavity. The Relative Intensity Noise (RIN) of the S1 and S2 components were measured using a direct detection scheme which takes into account the shot-noise of the detection system [16]. It consists in measuring the power spectral density (PSD) of the photocurrent generated by the detector by means of an electrical spectrum analyzer and normalizing the PSD by the average photocurrent.…”

Section: Linewidth-narrowing Effect In Brillouin Ring Cavitymentioning

confidence: 99%

Linewidth-narrowing and intensity noise reduction of the 2nd order Stokes component of a low threshold Brillouin laser made of Ge_10As_22Se_68 chalcogenide fiber

Tow¹,

Léguillon²,

Fresnel³

et al. 2012

Opt. Express

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A compact second-order Stokes Brillouin fiber laser made of microstructured chalcogenide fiber is reported for the first time. This laser required very low pump power for Stokes conversion: 6 mW for first order lasing and only 30 mW for second order lasing with nonresonant pumping. We also show linewidth-narrowing as well as intensity noise reduction for both the 1 st and 2 nd order Stokes component when compared to that of the pump source.

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Section: Linewidth-narrowing Effect In Brillouin Ring Cavitymentioning

confidence: 99%

Linewidth-narrowing and intensity noise reduction of the 2nd order Stokes component of a low threshold Brillouin laser made of Ge_10As_22Se_68 chalcogenide fiber

Tow¹,

Léguillon²,

Fresnel³

et al. 2012

Opt. Express

View full text Add to dashboard Cite

show abstract

“…The relative intensity noise (RIN) is measured using a classical method, 15 which takes into account the shot noise of the detection system. It consists in measuring the power spectral density (PSD) of the photocurrent generated by the detector by means of an electrical spectrum analyzer and normalizing the PSD by the average photocurrent.…”

Section: The Deep Sea State Zeromentioning

confidence: 99%

First demonstration of a 12 DFB fiber laser array on a 100 GHz ITU grid, for underwater acoustic sensing application

Léguillon

Tow

Besnard

et al. 2012

Optical Sensing and Detection II

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We report for the first time a multiplexed array of 12 distributed feedback fiber lasers (DFB FLs) on a single optical fiber, separated by only 100 GHz (0.8 nm) in the C-band. These lasers are pumped by a 200 mW laser diode at 1480 nm with no apparent impact on the sensor noise floor despite the fact that the residual reflections from adjacent gratings may be enhanced due to the smaller wavelength separation. Each DFB FL, especially developed for serial multiplexing, exhibits low lasing threshold typically between 1 and 2 mW, low intensity noise and very low frequency noise (less than 30 dB re 1 Hz 2 /Hz at 1 kHz from optical carrier). From these experimental results, extension to 32 DFB FLs array (on 100 GHz ITU grid) multiplexed on one fiber will be discussed.

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“…9 In this laser, two Bragg gratings are superimposed: a first grating is written and then a second one translated by a distance d. A simple view of the transmission of these two filters is expressed in terms of reflection plans, forming different cavities. Each of them will bring a lasing effect at a wavelength, corresponding to stationary a phase condition.…”

Section: Examples Of Correlation Measurementmentioning

confidence: 99%

“…Each of them will bring a lasing effect at a wavelength, corresponding to stationary a phase condition. 9 These cavities could be separated or share a common gain section depending on the distance d, which fixes the frequency difference between two elected wavelengths. The chirp of the grating and the spatial gap between them enable the number and of the free spectral range between the longitudinal modes to be controlled.…”

Section: Examples Of Correlation Measurementmentioning

confidence: 99%

Difference in partition noise for 1.55 μm quantum-dash and bulk structures

et al. 2008

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The comparison of relative intensity noise (Rin) shows improved performances, for quantum dash laser (QD) compared to the ones of bulk medium structures. We introduced a statistical measurement through a coupling parameter that reveals the impact of strong damping on the competition between modes or the so-called partition noise. The existence of a strong damping in QD laser prevents the relaxation frequency from being observed in the coupling parameter, which makes the noise to appear as if the laser lines were inhomogeneous. However the method also enables the characterization of the coupling strength between modes, showing again differences between QD and bulk structures.

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Relative intensity noise of multiwavelength fibre laser

Cited by 14 publications

References 6 publications

Linewidth-narrowing and intensity noise reduction of the 2nd order Stokes component of a low threshold Brillouin laser made of Ge_10As_22Se_68 chalcogenide fiber

Linewidth-narrowing and intensity noise reduction of the 2nd order Stokes component of a low threshold Brillouin laser made of Ge_10As_22Se_68 chalcogenide fiber

First demonstration of a 12 DFB fiber laser array on a 100 GHz ITU grid, for underwater acoustic sensing application

Difference in partition noise for 1.55 μm quantum-dash and bulk structures

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