Abstract
The ways of optimising the spectral linewidth of gain-switched asymmetric waveguide lasers with a large effective spot size for applications in non-linear optics are discussed. Theoretical analysis and comparison of different schemes of spectral narrowing for non-linear applications is presented, and the ways of maximising the performance improvement offered by the large effective spot size are compared. It is shown that, while customised single-frequency lasers are the most efficient in generating the non-linear signal, Fabry-Perot lasers operated in self-seeded gain-switched or external cavity mode locked regime are also capable of combining the advantages of the large effective spot size with a spectral linewidth within the tolerances provided by the spectral acceptance of typical non-linear elements.
Original language | English |
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Pages (from-to) | 57-65 |
Number of pages | 9 |
Journal | Iet optoelectronics |
Volume | 10 |
Issue number | 2 |
Early online date | 29 Feb 2016 |
DOIs | |
Publication status | Published - 1 Apr 2016 |