Abstract
We have experimentally investigated a stably tunable multiwavelength erbium-doped fiber ring laser based on phase modulation of a semiconductor optical amplifier with lasing wavelength and spacing tunability at room temperature. Stable multiwavelength operation is obtained by direct modulation of the bias current in the amplifier. We demonstrate such a laser incorporating a tunable Lyot-Sagnac filter with two segments of polarization-maintaining fibers with wavelength-spacing and lasing wavelength tunability. We successfully achieved 1.0-nm-spacing eight-channel and 0.8-nm-spacing ten-channel lasing wavelengths at room temperature. The lasing wavelength of the laser can be also controlled by a polarization controller.
| Original language | English |
|---|---|
| Article number | 034202 |
| Journal | Optical Engineering |
| Volume | 46 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2007 |
Keywords
- Lyot-Sagnac filter
- Multiwavelength fiber laser
- Phase modulation
- Semiconductor optical amplifier
- Tunable laser