{'fraction_non_alphanumeric': 0.03177570093457944, 'fraction_numerical': 0.014953271028037384, 'mean_word_length': 4.763440860215054, '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}}
Chromatic dispersion measurements in single-mode fibers using picosecond InGaAsP injection lasers in the 1.2- to 1.5-μm spectral region

We describe the use of picosecond InGaAsP injection lasers for measuring chromatic dispersion in single-mode fibers in the 1.2- to 1.5-μm spectral region. Injection lasers at various wavelengths and a single-mode fiber-to-fiber switch are used in the pulse delay and pulse-broadening measurements. The simplicity and the compactness make the setup useful for field measurements and quality control.