Abstract
A single-longitudinal-mode selection is realized in a linear-cavity fiber laser construction using a loop-back optical circulator and a partial reflectance fiber Bragg grating as the cavity ends. At 1551 nm wavelength, the measured signal-to-noise-ratio is 56 dB and with a line width less than 1 MHz obtained using multiple subring cavities as mode filters. The pumping efficiency is 10% improved by recycling the residual pump power to gain medium.
Original language | English |
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Pages (from-to) | 1608-1611 |
Number of pages | 4 |
Journal | Laser Physics |
Volume | 20 |
Issue number | 7 |
DOIs | |
State | Published - 07 2010 |
Externally published | Yes |