The power spectral density of 1\f noise in a tunable diode laser at different temperatures

We present investigations of the 1/f noise fluctuations with the different setup temperatures of the tunable laser diode. The measurements are reported from the terminal of the external photodiode using LAB View Signal Express software. The fast Fourier transform method has been implemented, the pow...

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Bibliographic Details
Published in:Journal of optics (New Delhi) 2018-03, Vol.47 (1), p.61-64
Main Author: Mahdi, Samira A.
Format: Article
Language:English
Subjects:
Density
Fast Fourier transformations
Fourier transforms
Lasers
Noise
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Research Article
Semiconductor lasers
Spectra
Tunable lasers
Variations
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Summary:We present investigations of the 1/f noise fluctuations with the different setup temperatures of the tunable laser diode. The measurements are reported from the terminal of the external photodiode using LAB View Signal Express software. The fast Fourier transform method has been implemented, the power spectral density is evaluated at different operation temperatures of the diode laser. The amplitude A of 1/f noise at 1 kHz, and the relation between the frequency exponent factor α and temperatures has been demonstrated. The results show that the power spectral density of the 1/f noise, as well as the value of α decreases as the temperature, increase.
ISSN:0972-8821
0974-6900
DOI:10.1007/s12596-017-0426-x