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Investigation of noise effect of CMS laser lineshape and frequency fluctuations

Lineshape and frequency fluctuations actually cause the optical field of current modulation semiconductor laser (CMS) laser beam to deviate from a pure sine wave [1]. This paper investigates the lineshape of a CMS laser for two distinct types of frequency noise. In the first case the investigation a...

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Main Authors: Saktioto, Toto, Hamdi, Muhamad, Irawan, Dedi, Zainal, Jasman, Ali, Jalil
Format: Conference or Workshop Item
Published: 2011
Subjects:
Q Science (General)
Online Access:http://eprints.utm.my/id/eprint/45966/
http://dx.doi.org/10.1109/ISBEIA.2011.6088859
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spelling my.utm.459662017-07-10T01:13:10Z http://eprints.utm.my/id/eprint/45966/ Investigation of noise effect of CMS laser lineshape and frequency fluctuations Saktioto, Toto Hamdi, Muhamad Irawan, Dedi Zainal, Jasman Ali, Jalil Q Science (General) Lineshape and frequency fluctuations actually cause the optical field of current modulation semiconductor laser (CMS) laser beam to deviate from a pure sine wave [1]. This paper investigates the lineshape of a CMS laser for two distinct types of frequency noise. In the first case the investigation analyzes on the low-pass filter, the frequency noise level is a constant δo below a cutoff frequency but zero above this threshold. In the second case on high-pass filter the frequency noise level is a constant δo above a cutoff frequency but zero below this threshold. Investigations observed inspire us to focus for separation of the frequency noise spectrum into two regions wherein due to the effect of noise on the lineshape is radically different in the slow modulation area in a left side of the diagonal line where the noise contributes to the laser linewidth, with a Gaussian shape, and the other one the fast modulation area in a right side of the diagonal line, where the noise contributes only to the wings of the line (sidebands) and not to the linewidth, thus transforming the lineshape from Gaussian to Lorentzian. 2011 Conference or Workshop Item PeerReviewed Saktioto, Toto and Hamdi, Muhamad and Irawan, Dedi and Zainal, Jasman and Ali, Jalil (2011) Investigation of noise effect of CMS laser lineshape and frequency fluctuations. In: IEEE Symposium On Business, Engineering And Industrial Applications (ISBEIA 2011). http://dx.doi.org/10.1109/ISBEIA.2011.6088859
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic Q Science (General)
spellingShingle Q Science (General)
Saktioto, Toto
Hamdi, Muhamad
Irawan, Dedi
Zainal, Jasman
Ali, Jalil
Investigation of noise effect of CMS laser lineshape and frequency fluctuations
description Lineshape and frequency fluctuations actually cause the optical field of current modulation semiconductor laser (CMS) laser beam to deviate from a pure sine wave [1]. This paper investigates the lineshape of a CMS laser for two distinct types of frequency noise. In the first case the investigation analyzes on the low-pass filter, the frequency noise level is a constant δo below a cutoff frequency but zero above this threshold. In the second case on high-pass filter the frequency noise level is a constant δo above a cutoff frequency but zero below this threshold. Investigations observed inspire us to focus for separation of the frequency noise spectrum into two regions wherein due to the effect of noise on the lineshape is radically different in the slow modulation area in a left side of the diagonal line where the noise contributes to the laser linewidth, with a Gaussian shape, and the other one the fast modulation area in a right side of the diagonal line, where the noise contributes only to the wings of the line (sidebands) and not to the linewidth, thus transforming the lineshape from Gaussian to Lorentzian.
format Conference or Workshop Item
author Saktioto, Toto
Hamdi, Muhamad
Irawan, Dedi
Zainal, Jasman
Ali, Jalil
author_facet Saktioto, Toto
Hamdi, Muhamad
Irawan, Dedi
Zainal, Jasman
Ali, Jalil
author_sort Saktioto, Toto
title Investigation of noise effect of CMS laser lineshape and frequency fluctuations
title_short Investigation of noise effect of CMS laser lineshape and frequency fluctuations
title_full Investigation of noise effect of CMS laser lineshape and frequency fluctuations
title_fullStr Investigation of noise effect of CMS laser lineshape and frequency fluctuations
title_full_unstemmed Investigation of noise effect of CMS laser lineshape and frequency fluctuations
title_sort investigation of noise effect of cms laser lineshape and frequency fluctuations
publishDate 2011
url http://eprints.utm.my/id/eprint/45966/
http://dx.doi.org/10.1109/ISBEIA.2011.6088859
_version_ 1643651895694196736
score 13.211869

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