Abstract
We have demonstrated a novel approach to obtain a 0.1-nm line width laser with 38-dB sidemode suppression by utilizing a 1.3-μm semiconductor optical amplifier in a fiber unidirectional ring that consists of a linear polarizer and polarization controllers. The laser has a low-threshold current of 22.5 mA as well as a widely tuning range of 28 nm. The new approach is applicable to the 1.55-μm region as well. It is expected that nanosecond wavelength tuning speed is feasible using this approach in conjunction with fast electrooptic polarization controllers, short cavities and low-cavity losses.
| Original language | English |
|---|---|
| Pages (from-to) | 781-783 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 10 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Jun 1998 |
Keywords
- electrooptic polarization controller
- Lyot filter
- narrow linewidth
- polarization maintaining fibers
- semiconductor fiber ring laser
- semiconductor optical amplifier
- tunable lasers
- wavelength-division multiplexing
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