| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5007385 | Optics & Laser Technology | 2017 | 5 Pages |
Abstract
In order to improve the processing efficiency and quality of nanosecond pulse laser drilling, a new double-pulse technique is put forward. Two single pulse lasers with different pulse duration or different repetition rate are spectrally combined by a home-made polarization-independent multilayer dielectric reflective diffraction grating. The pulse energy of single lasers and the inter-pulse separation can both be set at one's option. Then, double-pulse lasers represent two closely conjoint pulses with tunable pulse duration and tunable repetition rate and tunable pulse energy and tunable inter-pulse separation are obtained.
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Authors
Man Hu, Ye Zheng, Yifeng Yang, Xiaolong Chen, Kai Liu, Chun Zhao, Jianhua Wang, Yunfeng Qi, Bing He, Jun Zhou,