| Original Articles |
|
|
|
|
Single Mode Er-Doped π-Phase-Shifted Distributed Feedback Fibre Grating Laser |
WANG Li;CHEN Bai;CHEN Jia-Lin;LI Guo-Yang;CHANG Li-Ping;SUN An;LIN
Zun-Qi |
| Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
|
| Cite this article: |
|
WANG Li, CHEN Bai, CHEN Jia-Lin et al 2007 Chin. Phys. Lett. 24 721-723 |
|
|
|
|
Abstract A novel method incorporating the shielded method and the post-processing method has been proposed to fabricate the π-phase-shifted fibre grating. Then an Er-doped π-phase-shifted distributed feedback fibre grating laser has been fabricated using the grating. The laser threshold is 20mW. When pumped with 90mW light at 980nm, the laser gives an output of 1.1mW. Its signal-to-noise ratio is better than 60dB. It is demonstrated that the laser is single mode operation by means of a Fabry--Perot scanning interferometer.
|
| Keywords:
42.55.Wd
42.60.-v
42.81.Wg
|
|
|
Received: 15 August 2006
Published: 08 February 2007
|
|
| PACS: |
42.55.Wd
|
(Fiber lasers)
|
| |
42.60.-v
|
(Laser optical systems: design and operation)
|
| |
42.81.Wg
|
(Other fiber-optical devices)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
