.png){kind=icon}
.png){kind=icon}
Return
Single-frequency fiber laser at 1440 nm based on a high gain coefficient bismuth-doped fiber
.png){kind=icon}
PRE
AI
J
Y
M
F
L
M
李
C
L
DOI：10.3788/COL202523.031404.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
In this Letter, a homemade bismuth-doped germane silica fiber (BGSF) with a high gain coefficient is fabricated. Based on this fiber, a single-frequency fiber laser (SFFL) operating at 1440 nm is successfully realized. A ring cavity with a short BGSF of 10 m and two cascaded sub-ring cavities ensures the single-longitudinal-mode (SLM) operation. The maximum SLM laser output power of about 6 mW is obtained with the optical signal-to-noise ratio (OSNR) of more than 75 dB. The linewidth of the stable SLM laser is about 745 Hz, measured by the delayed self-heterodyne method. To the best of our knowledge, this is the first SFFL operating at 1440 nm based on the bismuth-doped fiber (BDF), demonstrating the great potential of BDF in expanding the operating band of SFFL.
Keywords:
bismuth-doped fiber
fiber laser
single-frequency laser.
Journal
IF:
3.3
Papers:
4.0W
Citations:
7.6W
Organization
Cited Papers