Mode-locked 2μm fiber laser with a multi-walled carbon nanotube as a saturable absorber
We propose and demonstrate a passively mode-locked fiber laser operating at 1951.8 nm using a commercial thulium-doped fiber (TDF) laser, a homemade double-clad thulium–ytterbium co-doped fiber (TYDF) as the gain media, and a multi-walled carbon nanotube (MWCNT) based saturable absorber (SA). We p...
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| Format: | Article |
| Language: | English |
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Chinese Optics Letters
2015
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| Online Access: | http://irep.iium.edu.my/43490/ http://irep.iium.edu.my/43490/1/Mode-locked_2_%CE%BCm_fiber_laser_with_a_multi-walled_carbon_nanotube_as_a_saturable_absorber_%28March_10%2C_2015_%29.pdf |
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| author | Azooz, Salam . M F. Ahmad, F. Ahmad Ahmad, Harith Harun, Sulaiman . Wade. Hamida, Belal Ahmed Khan, Sheroz A. Halder, A. Halder M. C. Paul , M. C. Paul M. Pal, M. Pal S. K. Bhadra, S. K. Bhadra |
| author_facet | Azooz, Salam . M F. Ahmad, F. Ahmad Ahmad, Harith Harun, Sulaiman . Wade. Hamida, Belal Ahmed Khan, Sheroz A. Halder, A. Halder M. C. Paul , M. C. Paul M. Pal, M. Pal S. K. Bhadra, S. K. Bhadra |
| author_sort | Azooz, Salam . M |
| building | IIUM Repository |
| collection | Online Access |
| description | We propose and demonstrate a passively mode-locked fiber laser operating at 1951.8 nm using a commercial
thulium-doped fiber (TDF) laser, a homemade double-clad thulium–ytterbium co-doped fiber (TYDF)
as the gain media, and a multi-walled carbon nanotube (MWCNT) based saturable absorber (SA). We prepare
the MWCNT composite by mixing a homogeneous solution of MWCNTs with a diluted polyvinyl alcohol
(PVA) polymer solution and then drying it at room temperature to form a film. The film is placed between
two fiber connectors as a SA before it is integrated into a laser ring cavity. The cavity consists of a 2 m long
TDF pumped by a 800 nm laser diode and a 15 m long homemade TYDF pumped by a 905 nm multimode laser
diode. A stable mode-locking pulse with a repetition rate of 34.6 MHz and a pulse width of 10.79 ps is obtained
when the 905 nm multimode pump power reaches 1.8–2.2 W, while the single-mode 800 nm pump power is fixed
at 141.5 mW at all times. To the best of our knowledge, this is the first reported mode-locked fiber laser using a
MWCNT-based SA. |
| first_indexed | 2025-11-14T16:05:47Z |
| format | Article |
| id | iium-43490 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T16:05:47Z |
| publishDate | 2015 |
| publisher | Chinese Optics Letters |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-434902017-11-03T00:25:50Z http://irep.iium.edu.my/43490/ Mode-locked 2μm fiber laser with a multi-walled carbon nanotube as a saturable absorber Azooz, Salam . M F. Ahmad, F. Ahmad Ahmad, Harith Harun, Sulaiman . Wade. Hamida, Belal Ahmed Khan, Sheroz A. Halder, A. Halder M. C. Paul , M. C. Paul M. Pal, M. Pal S. K. Bhadra, S. K. Bhadra Q Science (General) Q300 Cybernetics We propose and demonstrate a passively mode-locked fiber laser operating at 1951.8 nm using a commercial thulium-doped fiber (TDF) laser, a homemade double-clad thulium–ytterbium co-doped fiber (TYDF) as the gain media, and a multi-walled carbon nanotube (MWCNT) based saturable absorber (SA). We prepare the MWCNT composite by mixing a homogeneous solution of MWCNTs with a diluted polyvinyl alcohol (PVA) polymer solution and then drying it at room temperature to form a film. The film is placed between two fiber connectors as a SA before it is integrated into a laser ring cavity. The cavity consists of a 2 m long TDF pumped by a 800 nm laser diode and a 15 m long homemade TYDF pumped by a 905 nm multimode laser diode. A stable mode-locking pulse with a repetition rate of 34.6 MHz and a pulse width of 10.79 ps is obtained when the 905 nm multimode pump power reaches 1.8–2.2 W, while the single-mode 800 nm pump power is fixed at 141.5 mW at all times. To the best of our knowledge, this is the first reported mode-locked fiber laser using a MWCNT-based SA. Chinese Optics Letters 2015-03-10 Article PeerReviewed application/pdf en http://irep.iium.edu.my/43490/1/Mode-locked_2_%CE%BCm_fiber_laser_with_a_multi-walled_carbon_nanotube_as_a_saturable_absorber_%28March_10%2C_2015_%29.pdf Azooz, Salam . M and F. Ahmad, F. Ahmad and Ahmad, Harith and Harun, Sulaiman . Wade. and Hamida, Belal Ahmed and Khan, Sheroz and A. Halder, A. Halder and M. C. Paul , M. C. Paul and M. Pal, M. Pal and S. K. Bhadra, S. K. Bhadra (2015) Mode-locked 2μm fiber laser with a multi-walled carbon nanotube as a saturable absorber. Chinese Optics Letters, 13 (3). 030602-1. http://www.col.org.cn/ 10.3788/COL201513.030602 |
| spellingShingle | Q Science (General) Q300 Cybernetics Azooz, Salam . M F. Ahmad, F. Ahmad Ahmad, Harith Harun, Sulaiman . Wade. Hamida, Belal Ahmed Khan, Sheroz A. Halder, A. Halder M. C. Paul , M. C. Paul M. Pal, M. Pal S. K. Bhadra, S. K. Bhadra Mode-locked 2μm fiber laser with a multi-walled carbon nanotube as a saturable absorber |
| title | Mode-locked 2μm fiber laser with a multi-walled
carbon nanotube as a saturable absorber |
| title_full | Mode-locked 2μm fiber laser with a multi-walled
carbon nanotube as a saturable absorber |
| title_fullStr | Mode-locked 2μm fiber laser with a multi-walled
carbon nanotube as a saturable absorber |
| title_full_unstemmed | Mode-locked 2μm fiber laser with a multi-walled
carbon nanotube as a saturable absorber |
| title_short | Mode-locked 2μm fiber laser with a multi-walled
carbon nanotube as a saturable absorber |
| title_sort | mode-locked 2μm fiber laser with a multi-walled
carbon nanotube as a saturable absorber |
| topic | Q Science (General) Q300 Cybernetics |
| url | http://irep.iium.edu.my/43490/ http://irep.iium.edu.my/43490/ http://irep.iium.edu.my/43490/ http://irep.iium.edu.my/43490/1/Mode-locked_2_%CE%BCm_fiber_laser_with_a_multi-walled_carbon_nanotube_as_a_saturable_absorber_%28March_10%2C_2015_%29.pdf |