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The development of switchable thulium doped fiber laser in 2-micronmeter wavelength region / Aisah Muhamad

Thulium doped fiber (TDF) laser is widely known for its ability to broaden its spectrum emission until 2.0 μm by with the range of wavelength between 1800 until 2100 nm which is almost into the infrared region. Laser diodes with the maximum power of 220 mW emission at the wavelength of 1550 nm will...

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Main Author: Aisah, Muhamad
Format: Thesis
Published: 2017
Subjects:
Q Science (General)
QC Physics
Online Access:http://studentsrepo.um.edu.my/9126/1/Aisah_Muhamad.pdf
http://studentsrepo.um.edu.my/9126/9/aisah.pdf
http://studentsrepo.um.edu.my/9126/
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spelling my.um.stud.91262020-09-29T19:54:54Z The development of switchable thulium doped fiber laser in 2-micronmeter wavelength region / Aisah Muhamad Aisah, Muhamad Q Science (General) QC Physics Thulium doped fiber (TDF) laser is widely known for its ability to broaden its spectrum emission until 2.0 μm by with the range of wavelength between 1800 until 2100 nm which is almost into the infrared region. Laser diodes with the maximum power of 220 mW emission at the wavelength of 1550 nm will be used to provide the input power to the TDF with forward pumping configuration. A single pass and double pass configurations of TDF amplifier were implemented. In this study, the input test signal used are in the form of high signal (close to saturation) and low signal which are 0 dBm and -20 dBm respectively. The double pass configuration was able to give a high gain with low noise figure with the value of 28 dB and 3.48 dB respectively. Thus, it makes the efficiency of the amplifier from double pass amplification higher than the single pass configuration with the difference of 7.83%. The TDF laser has simply come from a closed laser cavity configuration with a laser diode at the wavelength of 1550 nm as the pump. The TDF laser was emitted at the wavelength of 1961 nm with a narrow 3-dB bandwidth of approximately 0.04 nm. A switchable TDF laser was proposed by employing an arrayed waveguide grating (AWG) as the wavelength selective mechanism. The emitted laser that can be tuned within the range of 17.27 nm in the region of 2 m. The interval spacing between the adjacent channels is approximately 100 GHz where every laser emission at the selected wavelength is able to produce an acceptable SMSR value, which is within 58.75 dB and narrow band of 3-dB bandwidth with approximately of 0.06 nm. The research output can be used in many applications such as in telecommunication system, medical appliances and remote sensing. 2017-08 Thesis NonPeerReviewed application/pdf http://studentsrepo.um.edu.my/9126/1/Aisah_Muhamad.pdf application/pdf http://studentsrepo.um.edu.my/9126/9/aisah.pdf Aisah, Muhamad (2017) The development of switchable thulium doped fiber laser in 2-micronmeter wavelength region / Aisah Muhamad. Masters thesis, University of Malaya. http://studentsrepo.um.edu.my/9126/
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Student Repository
url_provider http://studentsrepo.um.edu.my/
topic Q Science (General)
QC Physics
spellingShingle Q Science (General)
QC Physics
Aisah, Muhamad
The development of switchable thulium doped fiber laser in 2-micronmeter wavelength region / Aisah Muhamad
description Thulium doped fiber (TDF) laser is widely known for its ability to broaden its spectrum emission until 2.0 μm by with the range of wavelength between 1800 until 2100 nm which is almost into the infrared region. Laser diodes with the maximum power of 220 mW emission at the wavelength of 1550 nm will be used to provide the input power to the TDF with forward pumping configuration. A single pass and double pass configurations of TDF amplifier were implemented. In this study, the input test signal used are in the form of high signal (close to saturation) and low signal which are 0 dBm and -20 dBm respectively. The double pass configuration was able to give a high gain with low noise figure with the value of 28 dB and 3.48 dB respectively. Thus, it makes the efficiency of the amplifier from double pass amplification higher than the single pass configuration with the difference of 7.83%. The TDF laser has simply come from a closed laser cavity configuration with a laser diode at the wavelength of 1550 nm as the pump. The TDF laser was emitted at the wavelength of 1961 nm with a narrow 3-dB bandwidth of approximately 0.04 nm. A switchable TDF laser was proposed by employing an arrayed waveguide grating (AWG) as the wavelength selective mechanism. The emitted laser that can be tuned within the range of 17.27 nm in the region of 2 m. The interval spacing between the adjacent channels is approximately 100 GHz where every laser emission at the selected wavelength is able to produce an acceptable SMSR value, which is within 58.75 dB and narrow band of 3-dB bandwidth with approximately of 0.06 nm. The research output can be used in many applications such as in telecommunication system, medical appliances and remote sensing.
format Thesis
author Aisah, Muhamad
author_facet Aisah, Muhamad
author_sort Aisah, Muhamad
title The development of switchable thulium doped fiber laser in 2-micronmeter wavelength region / Aisah Muhamad
title_short The development of switchable thulium doped fiber laser in 2-micronmeter wavelength region / Aisah Muhamad
title_full The development of switchable thulium doped fiber laser in 2-micronmeter wavelength region / Aisah Muhamad
title_fullStr The development of switchable thulium doped fiber laser in 2-micronmeter wavelength region / Aisah Muhamad
title_full_unstemmed The development of switchable thulium doped fiber laser in 2-micronmeter wavelength region / Aisah Muhamad
title_sort development of switchable thulium doped fiber laser in 2-micronmeter wavelength region / aisah muhamad
publishDate 2017
url http://studentsrepo.um.edu.my/9126/1/Aisah_Muhamad.pdf
http://studentsrepo.um.edu.my/9126/9/aisah.pdf
http://studentsrepo.um.edu.my/9126/
_version_ 1738506227938230272
score 13.211869

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