Band-stop angular filtering with hump volume Bragg gratings 
Download： 702次
1 School of Optoelectronic Science and Engineering, Soochow University, Suzhou 215006, China
2 Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China
3 Key Laboratory of Advanced Optical Manufacturing Technologies of Jiangsu Province and Key Laboratory of Modern Optical Technologies of Ministry of Education, Suzhou 215006, China
Figures & Tables
Fig. 1. (a) Dependence of the central diffraction efficiency of the VBG on the product of the refractive index modulation and grating thickness; (b) angular selectivity of the VBG and HVBG.
下载图片 查看原文
Fig. 2. Principle of the BSF based on HVBGs.
下载图片 查看原文
Fig. 3. Diagram of band-stop filtering in a two-stage amplifier system.
下载图片 查看原文
Fig. 4. Angular selectivity of the HVBGs used in the simulation.
下载图片 查看原文
Fig. 5. Near-field beam profiles of (a) the incident beam, (b) output beam from Amp.1, and output beams from the two-stage amplifier system (c) without BSF and (d) with BSF.
下载图片 查看原文
Fig. 6. The dependence of near-field modulation on the accumulated B integral.
下载图片 查看原文
Fig. 7. Dependence of the normalized PSD on the spatial frequency both in (a) the $x$ direction and (b) the $y$ direction for the incident beam, the output beam from Amp.1 and the output beams from the two-stage amplifier system without and with two-dimensional BSF.
下载图片 查看原文
Table1. Parameters of the HVBGs used in the simulation.
| Parameter | () | (mm) | PDE (%) | HWFM (mrad) |
|---|
| Value | 1.18 | 4.00 | 82.96 | 1.05 |
|
查看原文
Fan Gao, Xin Wang, Tiancheng Yu, Xiang Zhang, Xiao Yuan. Band-stop angular filtering with hump volume Bragg gratings[J]. High Power Laser Science and Engineering, 2019, 7(2): 02000e29.
PDF全文
