Nickel oxide nanoparticles as a saturable absorber for an all-fiber passively Q-switched erbium-doped fiber laser
Nickel oxide (NiO) nanoparticles were synthesized by a facile sonochemical method to fabricate saturable absorber (SA) composite film with a modulation depth of 39% and saturation intensity of 0.025 MW cm-2. By inserting the NiO SA into a laser cavity, a stable Q-switched operation is achieved at 15...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Published: |
IOP Publishing
2017
|
| Subjects: | |
| Online Access: | http://eprints.um.edu.my/19731/ https://doi.org/10.1088/1555-6611/aa6bd7 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Nickel oxide (NiO) nanoparticles were synthesized by a facile sonochemical method to fabricate saturable absorber (SA) composite film with a modulation depth of 39% and saturation intensity of 0.025 MW cm-2. By inserting the NiO SA into a laser cavity, a stable Q-switched operation is achieved at 1561.2 nm. The laser has a pump threshold of 25 mW, a pulse repetition rate tunable from 19.57 to 52.18 kHz, a high signal-to-noise ratio of 55 dB and a minimum pulse duration of 5.2 μs. Such results imply that NiO nanoparticles are a comparable candidate for an SA in passively Q-switched fiber lasers at a low pump intensity. To the best of our knowledge, this is the first demonstration of a fiber laser based on NiO SA. |
|---|