Mode-locked near-infrared thulium doped fibre laser using evanescent field effect with Bi2O3 saturable absorber
Using the evanescent field effect, a high power passively mode-locked laser with a pulse duration of 1.85 ps and the pulse energy of 13.15 pJ is demonstrated. A Bi2O3 solution is used as a saturable absorber (SA) on a side polished fibre incorporated into a thulium doped fibre laser cavity for opera...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Published: |
IOP Publishing
2019
|
| Subjects: | |
| Online Access: | http://eprints.um.edu.my/24343/ https://doi.org/10.1088/1555-6611/ab0d10 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Using the evanescent field effect, a high power passively mode-locked laser with a pulse duration of 1.85 ps and the pulse energy of 13.15 pJ is demonstrated. A Bi2O3 solution is used as a saturable absorber (SA) on a side polished fibre incorporated into a thulium doped fibre laser cavity for operation in the mid-infrared range. The 37.61% SA has a modulation depth and creates a highly stable mode-locked pulse output with a short pulse duration. The calculated net cavity dispersion at central wavelength is -1.4 ps2, indicating operation is in the anomalous dispersion regime and confirmed by the presence of Kelly's side-bands observed in the generated optical spectrum. Radio frequency analysis reveals a high signal to noise ratio, making this laser stable for use in telecommunication systems. © 2019 Astro Ltd. |
|---|