Résumé
We report on high external efficiency reduced far field divergence DFB laser emitting at 1.55 μm. A high spatial resolution lithography is used to define the tapered section of the spot size converter integrated in the device. Thanks to suitable UV-250 contact lithography process, sub-micron patterns, 2-inch homogeneity and run to run reproducibility is simultaneously achieved. 15°×15° front facet divergence is obtained allowing 3.6 dB coupling loss to an AR coated end-cleaved standard optical fibre. Threshold current as low as 11 mA and external efficiency up to 0.42 W/A at 25 °C have been measured on 500 μm long lasers.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 33-36 |
| Nombre de pages | 4 |
| journal | Conference Proceedings-International Conference on Indium Phosphide and Related Materials |
| état | Publié - 1 janv. 1999 |
| Modification externe | Oui |
| Evénement | Proceedings of the 1999 11th International Conference on Indium Phosphide and Related Materials (IPRM) - Davos, Switz Durée: 16 mai 1999 → 20 mai 1999 |
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