Abstract
A pulse train with a repetition rate of 115 GHz was obtained at 1.55 μm from a continuous-wave modulational-instability erbium-doped fiber laser. This laser has a Fabry-Perot filter whose free spectral range is set at 115 GHz, corresponding to the modulational-instability gain peak. This filter enables us to initiate modulational instability easily with a low threshold and produce a stable, continuous-wave pulse train. The stability of the pulse train is greatly improved by suppression of supermode noise with a combination of self-phase modulation and a narrow-band optical filter.
| Original language | English |
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| Pages (from-to) | 1409-1411 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 22 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 1997 Sept 15 |