Graphene-oxide-based saturable absorber for all-fiber Q-switching with a simple optical deposition technique
A Q-switched erbium-doped fiber laser (EDFL) incorporating a graphene-oxidebased saturable absorber (SA) is proposed and demonstrated. The SA is fabricated by first dissolving graphene oxide nanopowder in water and subsequently using the thermophoresis effect to deposit it onto the fiber ferrule....
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | en |
| Published: |
IEEE
2012
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/84319/1/Graphene-Oxide-Based%20Saturable%20Absorber.pdf http://irep.iium.edu.my/84319/ https://ieeexplore.ieee.org/document/6365729 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | A Q-switched erbium-doped fiber laser (EDFL) incorporating a graphene-oxidebased saturable absorber (SA) is proposed and demonstrated. The SA is fabricated by first
dissolving graphene oxide nanopowder in water and subsequently using the thermophoresis
effect to deposit it onto the fiber ferrule. The SA is integrated into a ring cavity EDFL, which
uses a 3-m-long MetroGain Type-12 erbium-doped fiber (EDF) as the gain medium. The
EDFL has a continuous-wave (CW) lasing threshold at a pump power of 9 mW, with
Q-switching behavior observed at pump powers 18 mW and above. At the maximum pump
power of 100 mW, the Q-switched pulses generated by the EDFL have a repetition rate and
pulsewidth of 61 kHz and 6.6 s, respectively, along with an average output power of about
3.7 mW. Additionally, at the maximum power, the energy per pulse and peak power of the
generated pulses are 61.3 nJ and 9.3 mW, respectively |
|---|