1. CNR-IFN UOS Bari and Dipartimento Interateneo di Fisica
2. Università e Politecnico di Bari
3. 70126 Bari
4. Italy
5. CNR-INO UOS Sesto Fiorentino and LENS
6. 50019 Sesto Fiorentino FI
7. Development Bureau Laser Device R&D Group
8. Hamamatsu Photonics KK
9. Shizuoka 434-8601
10. Japan
11. Central Research Laboratories