Simulation of grating compressor misalignment tolerances and mitigation strategies for chirped-pulse-amplification systems of varying bandwidths and beam sizes

被引：15

作者：

Webb, B. ^{[1
]}

Guardalben, M. J. ^{[1
]}

Dorrer, C. ^{[1
]}

Bucht, S. ^{[1
]}

Bromage, J. ^{[1
]}

机构：

[1] Univ Rochester, Laser Energet Lab, 250 East River Rd, Rochester, NY 14623 USA

来源：

APPLIED OPTICS | 2019年 / 58卷 / 02期

关键词：

DAMAGE THRESHOLD; HIGH-EFFICIENCY;

D O I：

10.1364/AO.58.000234

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The effects of pulse compressor grating misalignment on pulse duration and focusability are simulated for chirpedpulse-amplification systems of varying bandwidths, beam sizes, groove densities, and incident angles. Tilt-alignment tolerances are specified based on a root 2 drop in focused intensity, illustrating how tolerances scale with bandwidth and compressor beam size, which scales with energy when transformed via known grating damage thresholds. Grating-alignment tolerance scaling with grating groove density and incident/diffracted angles is investigated and applied to compressor design. A correlation between grating tip and in-plane rotation error sensitivity is defined and used to compensate residual out-of-plane angular dispersion, even for ultra-broadband pulses. Simulation of dispersion compensation methods after grating misalignment is shown to mitigate pulse lengthening, limited by temporal contrast degradation and higher-order effects for ultrabroad bandwidths. (C) 2019 Optical Society of America

引用

页码：234 / 243

页数：10

共 3 条

[1] Analysis of chirped-pulse-amplification system based on Offner triplet stretcher and transmission grating compressor
Li, Lin
Li, Chaoming
Chen, Xinrong
Liu, Linyue
Wu, Jianhong
[J]. HIGH-POWER LASERS AND APPLICATIONS VII, 2014, 9266
[2] Large-aperture grating tiling by interferometry for petawatt chirped-pulse-amplification systems
Qiao, J.
Kalb, A.
Guardalben, M. J.
King, G.
Canning, D.
Kelly, J. H.
[J]. OPTICS EXPRESS, 2007, 15 (15): : 9562 - 9574
[3] Temporal contrast improvement in chirped pulse amplification systems by a four-grating compressor and by spectral modifications
Jha, Nandan
Deb, Paramita
[J]. OPTIK, 2014, 125 (10): : 2261 - 2266

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