{'fraction_non_alphanumeric': 0.01881331403762663, 'fraction_numerical': 0.0, 'mean_word_length': 6.208333333333333, '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}}
Realization of Sampled Fiber Bragg Gratings With In-Channel Dispersion Compensability, Broad Spectra, and Densed Spacings for Wavelength Division Multiplexing Systems

We introduce fabrication methods using phase-masks for spectral broadening and densification of sampled fiber Bragg gratings (FBGs), as well as enabling the in-channel dispersion compensability for future wavelength division multiplexing (WDM) systems. In channel dispersion compensation is obtained by maintaining the balance of grating parameters based on the calculations, the reflection bandwidth is broadened by interleaving different sampled FBGs and channel spacing is densified by using multiple phase shift method.