Low frequency noise of a 980 nm InGaAs/GaAs strained quantum well laser

Orsal, B.; Peransin, J.M.; Signoret, Philippe; Daulasim, K.

doi:10.1051/jp3:1993234

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…We also notice a Lorentzian shape, identified by a flat level followed by a 1/f 2 -decrease. Such an evolution reveals a mode competition phenomenon, already described in Fabry-Perot lasers 8,9 .…”

Section: Figure 11 Electrical Noise Power Density Of the Active Sectmentioning

confidence: 56%

Correlation between tuning section electrical noise and optical amplitude fluctuations in DBR two- and three-section tunable lasers emitting around 1.55 μm

et al. 2003

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Tunable Lasers are key-components for Wavelength Division Multiplexing optical communication applications at 1.55µm. In this paper, we report the analysis of the correlation function between the active or passive section electrical noise power spectral density and the optical noise power spectral density. We performed this study in two opposite SMSR ("Side Mode Suppression Ratio") configurations, i.e. high SMSR (monomode configuration) values and low SMSR (mode competition configuration) values, in a low to medium frequency range, from 1Hz to 500kHz. The active section/optical beam correlation measurements are given as reference in order to allow a qualitative and quantitative comparison with the passive section/optical beam correlation results. The new field of investigation is the correlation between the optical beam noise and the Bragg section electrical noise. The aim of this analysis is to show the contribution of the Bragg section electrical noise into the beam optical noise. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/24/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Proc. of SPIE Vol. 5111 247 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/24/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx

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Section: Figure 11 Electrical Noise Power Density Of the Active Sectmentioning

confidence: 56%

Correlation between tuning section electrical noise and optical amplitude fluctuations in DBR two- and three-section tunable lasers emitting around 1.55 μm

et al. 2003

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“…The laser has a cavity length of 1200 μm and is coated, for the 50 • C aging tests, with standard low-( ∼ =1%) and high-reflectivity ( ∼ =90%) coatings on the facets. A different coating reflectivity and aging configuration has also been studied in a previous work [1][2][3].…”

Section: Device Descriptionmentioning

confidence: 99%

SCLC Degradation in 980 nm Pump Laser by Using Electrical Noise

Orsal¹,

Asaad

2012

ISRN Optics

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The knowledge of the noise levels is important for pump laser diodes as it allows to study and to locate the noise sources and their origin. 980 nm fresh and aged pump lasers have been characterized by using electrical noise measurements. At 10 Hz, the spectra are dominated by () noise. Current noise spectral density (CNSD) is dominated by (). The trapping defect density near the n+n- and p+p- interfaces is related to pinching of the space-charge-limited current (SCLC) effect. An excess electrical noise due to longitudinal mode hopping is correlated with optical power fluctuations.

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