{'fraction_non_alphanumeric': 0.0234375, 'fraction_numerical': 0.005208333333333333, 'mean_word_length': 4.833333333333333, '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}}
Design of double-ring resonator for tunable lasers on silicon

We designed and analyzed the ring resonators used as external optical cavities for hybrid tunable lasers based on silicon waveguides. The designed double-ring resonators (DRRs) for tunable lasers on silicon can provide a tuning range over 40 nm by micro-heaters, which cover the entire C-band with a high tuning accuracy.