{'fraction_non_alphanumeric': 0.027777777777777776, 'fraction_numerical': 0.006944444444444444, 'mean_word_length': 5.013888888888889, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Control of multi-soliton generation in fiber 8-figure laser by tunable spectral filtering

Generation of bounded solitons in the fiber mode-locked lasers attracted great deal of attention in recently [1] , [2] . The advances in the field may provide new optical sources for material processing and telecommunication. However, robust control of the number of bounded solitons and their temporal separation is still a major challenge.