A q-switched thulium-doped fiber laser with a graphene thin film based saturable absorber
We demonstrate a simple, compact and low cost Q-switched thulium-doped fiber laser (TDFL) operating at 1844.1 nm by exploiting a graphene based saturable absorber (SA) in conjunction with 1552 nm pumping. The SA is fabricated by sandwiching the graphene thin film between two fiber connectors. The...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing Ltd
2013
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/41889/ http://irep.iium.edu.my/41889/ http://irep.iium.edu.my/41889/ http://irep.iium.edu.my/41889/1/%5B1%5D_A_Q-switched_thulium-doped_fiber_laser_with_a_graphene_thin_film_based_saturable_absorber%287-10-2013%29.pdf |
| Summary: | We demonstrate a simple, compact and low cost Q-switched thulium-doped fiber laser (TDFL)
operating at 1844.1 nm by exploiting a graphene based saturable absorber (SA) in conjunction
with 1552 nm pumping. The SA is fabricated by sandwiching the graphene thin film between
two fiber connectors. The thin film was produced by mixing graphene flakes, synthesized by
an electrochemical exfoliation process, with polyethylene oxide (PEO) solution. The TDFL
generates a stable pulse train with 6.73 kHz repetition rate, 11.41 µs pulse width and 90.64 nJ
pulse energy at 513 mW 1552 nm pump power. A higher performance Q-switched TDFL is
expected to be achieved with the optimization of the SA and laser cavity. |
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