Nonlinear filtering of an optical pulse train using dissipative Kerr solitons

• DOI: 10.1364/optica.6.001386
• Publication Date: 2019-10-22T20:25:21Z
• Authors: Victor Brasch; Ewelina Obrzud; Steve Lecomte; Tobias Herr
• Keywords: Laser linewidth; Narrowband

The capability to store light for extended periods of time enables optical cavities act as narrowband filters, whose linewidth corresponds the cavity’s inverse energy storage time. Here, we report on nonlinear filtering an pulse train based temporal dissipative Kerr solitons in microresonators. Our experimental results combination with analytical and numerical modeling show that soliton dynamics information about system’s physical state longer than time, thereby giving rise a filter width can be more order magnitude below intrinsic linewidth. Such find immediate applications metrology, low-timing jitter ultrashort generation potentially opens new avenues microwave photonics.