Q-switched Raman fiber laser with titanium dioxide based saturable absorber

N. Hisamuddin; Z. Jusoh; U.N. Zakaria; M.Z. Zulkifli; A.A. Latiff; M. Yasin; H. Ahmad; S.W. Harun

Q-switched Raman fiber laser with titanium dioxide based saturable absorber

N. Hisamuddin, Z. Jusoh, U.N. Zakaria, M.Z. Zulkifli, A.A. Latiff, M. Yasin, H. Ahmad, S.W. Harun

College of Engineering and Physical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

We demonstrate a Q-switched Raman fiber laser (RFL) using a newly developed Titanium dioxide (TiO₂) film based saturable absorber (SA). The SA is fabricated by mixing the dispersed TiO₂ suspension into a polyvinyl alcohol solution to form a precursor which is then transformed into a thin film through a drying process at room temperature. It is sandwiched between two fibre ferrules and inserted in a Raman fiber laser cavity with a total cavity length of about 8 km. Self-started pulse train operating at 1558.5 nm is generated as the pump power is increased from 398 mW to 431 mW with a repetition rate that can be tuned from 131.4 to 142.5 kHz. The smallest pulse width of 2.97 µs and the highest energy of 5.81 nJ are obtained at pump power of 431 mW and 427 mW, respectively. These results show that the TiO₂ embedded in polymer film has a great potential to be used for pulse generation in Raman fiber laser system.

Original language	English
Pages (from-to)	127-130
Number of pages	4
Journal	Optoelectronics and Advanced Materials, Rapid Communications
Volume	11
Issue number	3-4
Publication status	Published - 30 Apr 2017

Bibliographical note

n

Keywords

fiber lasers
Q-switched lasers
Raman lasers
saturable absorber
titanium dioxide

Cite this

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title = "Q-switched Raman fiber laser with titanium dioxide based saturable absorber",

abstract = "We demonstrate a Q-switched Raman fiber laser (RFL) using a newly developed Titanium dioxide (TiO2) film based saturable absorber (SA). The SA is fabricated by mixing the dispersed TiO2 suspension into a polyvinyl alcohol solution to form a precursor which is then transformed into a thin film through a drying process at room temperature. It is sandwiched between two fibre ferrules and inserted in a Raman fiber laser cavity with a total cavity length of about 8 km. Self-started pulse train operating at 1558.5 nm is generated as the pump power is increased from 398 mW to 431 mW with a repetition rate that can be tuned from 131.4 to 142.5 kHz. The smallest pulse width of 2.97 µs and the highest energy of 5.81 nJ are obtained at pump power of 431 mW and 427 mW, respectively. These results show that the TiO2 embedded in polymer film has a great potential to be used for pulse generation in Raman fiber laser system.",

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TY - JOUR

T1 - Q-switched Raman fiber laser with titanium dioxide based saturable absorber

AU - Hisamuddin, N.

AU - Jusoh, Z.

AU - Zakaria, U.N.

AU - Zulkifli, M.Z.

AU - Latiff, A.A.

AU - Yasin, M.

AU - Ahmad, H.

AU - Harun, S.W.

N1 - n

PY - 2017/4/30

Y1 - 2017/4/30

N2 - We demonstrate a Q-switched Raman fiber laser (RFL) using a newly developed Titanium dioxide (TiO2) film based saturable absorber (SA). The SA is fabricated by mixing the dispersed TiO2 suspension into a polyvinyl alcohol solution to form a precursor which is then transformed into a thin film through a drying process at room temperature. It is sandwiched between two fibre ferrules and inserted in a Raman fiber laser cavity with a total cavity length of about 8 km. Self-started pulse train operating at 1558.5 nm is generated as the pump power is increased from 398 mW to 431 mW with a repetition rate that can be tuned from 131.4 to 142.5 kHz. The smallest pulse width of 2.97 µs and the highest energy of 5.81 nJ are obtained at pump power of 431 mW and 427 mW, respectively. These results show that the TiO2 embedded in polymer film has a great potential to be used for pulse generation in Raman fiber laser system.

AB - We demonstrate a Q-switched Raman fiber laser (RFL) using a newly developed Titanium dioxide (TiO2) film based saturable absorber (SA). The SA is fabricated by mixing the dispersed TiO2 suspension into a polyvinyl alcohol solution to form a precursor which is then transformed into a thin film through a drying process at room temperature. It is sandwiched between two fibre ferrules and inserted in a Raman fiber laser cavity with a total cavity length of about 8 km. Self-started pulse train operating at 1558.5 nm is generated as the pump power is increased from 398 mW to 431 mW with a repetition rate that can be tuned from 131.4 to 142.5 kHz. The smallest pulse width of 2.97 µs and the highest energy of 5.81 nJ are obtained at pump power of 431 mW and 427 mW, respectively. These results show that the TiO2 embedded in polymer film has a great potential to be used for pulse generation in Raman fiber laser system.

KW - fiber lasers

KW - Q-switched lasers

KW - Raman lasers

KW - saturable absorber

KW - titanium dioxide

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UR - https://oam-rc.inoe.ro/index.php/index.php?option=magazine&op=view&idu=2975&catid=101

M3 - Article

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SN - 1842-6573

VL - 11

SP - 127

EP - 130

JO - Optoelectronics and Advanced Materials, Rapid Communications

JF - Optoelectronics and Advanced Materials, Rapid Communications

IS - 3-4

ER -

Q-switched Raman fiber laser with titanium dioxide based saturable absorber

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