| Original Articles |
|
|
|
|
Negative Dispersion Mirrors in Ta2O5SiO2 for Femtosecond Ti:Sapphire Lasers by Using Gires--Tournois Interferometers |
| LIAO Chun-Yan1,2;WU Zu-Bin3;FAN Zheng-Xiu1;SHAO Jian-Da1;WANG Zhuan3;ZHANG Zhi-Gang3 |
| 1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
2Graduate School of the Chinese Academy of Sciences, Beijing 100039
3Ultrafast Laser Laboratory, Tianjin University, Tianjin 300072 |
|
| Cite this article: |
|
LIAO Chun-Yan, WU Zu-Bin, FAN Zheng-Xiu et al 2005 Chin. Phys. Lett. 22 1443-1445 |
|
|
|
|
Abstract We design and experimentally demonstrate some negative dispersion mirrors with optimized Gires--Tournois interferometers. The mirror structure is composed of 38 alternating Ta2O5 and SiO2 layers and could be regarded as two sections: high-reflectivity section consisting of a series of quarter-wavelength optical thickness stacks and negative-dispersion section consisting of only 13 layers. The designed mirrors exhibit the expected performance. These mirrors were fabricated by using ion beam sputtering. By adopting such mirrors, dispersion of a mode-locked femtosecond Ti:sapphire laser has been compensated for mostly. With two series of the mirrors, 32fs and 15fs pulses have been obtained respectively.
|
| Keywords:
42.79.Wc
42.79.Bh
42.65.Re
|
|
|
Published: 01 June 2005
|
|
| PACS: |
42.79.Wc
|
(Optical coatings)
|
| |
42.79.Bh
|
(Lenses, prisms and mirrors)
|
| |
42.65.Re
|
(Ultrafast processes; optical pulse generation and pulse compression)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
