Experimental damage thresholds of a laser suppression imaging system using a cubic phase plate

• Main Authors: Li, Y. (Author), Sun, K. (Author), Wang, L. (Author), Wu, Y. (Author), Ye, Q. (Author), Zhang, H. (Author)
• Format: Article
• Language: English
• Published: Optica Publishing Group (formerly OSA) 2023
• Subjects: Codes (symbols); Cubic phase; Damage threshold; Experimental damage; Imaging sensors; Imaging systems; Laser damage; Laser induced damage thresholds; laser suppression; Laser suppression; Laser systems; laser-induced damage thresholds; Phase Plate; Wavefront coding; wavefront coding imaging system; Wavefront coding imaging system; Wavefronts
• Online Access: View Fulltext in Publisher
• ISBN: 16717694 (ISSN)
• ISSN: 16717694 (ISSN)
• DOI: 10.3788/COL202321.041403

The development of laser systems leads to an increasing threat to photoelectric imaging sensors. A cubic phase plate wavefront coding imaging system is proposed to reduce the risk of damage owing to intense laser radiation. Based on the wavefront coding imaging model, the diffracted spot profile and the light intensity distribution on the observation plane are simulated. An experimental device is set up to measure the laser-induced damage thresholds and investigate the morphology of laser-induced damage patterns of the conventional and the wavefront encoding imaging system. Simulations and experimental results manifest the superior laser suppression performance of the proposed method, which can help diminish the undesirable effects of laser irradiation on an imaging sensor. © 2023 Chinese Optics Letters.