| Title | Long period fiber gratings for the mitigation of parasitic laser effects in mid-infrared fiber amplifiers. |
| Publication Type | Journal Article |
| Year of Publication | 2019 |
| Authors | Heck, Maximilian, Jean-Christophe Gauthier, Andreas Tünnermann, Réal Vallée, Stefan Nolte, and Martin Bernier |
| Journal | Opt Express |
| Volume | 27 |
| Issue | 15 |
| Pagination | 21347-21357 |
| Date Published | 2019 Jul 22 |
| ISSN | 1094-4087 |
| Abstract | A concept to mitigate parasitic lasing in mid-IR fiber amplifiers using a single long period fiber grating is shown. Using tightly confined ultrashort laser pulses at 800 nm, a grating was directly inscribed into the core of an erbium doped fluoride glass fiber showing a strong attenuation down to -27 dB at desired wavelength. The concept reveals great potential to improve the average output power and attainable spectral range of low repetition rate in-amplifier supercontinuum generation. |
| DOI | 10.1364/OE.27.021347 |
| Alternate Journal | Opt Express |
| PubMed ID | 31510214 |