{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["006:55"], "contactPoint": {"fn": "Laura Sinclair", "hasEmail": "mailto:laura.sinclair@nist.gov"}, "description": "Data for the figures in the manuscript entitled \"Compact dual comb time-transfer and ranging for future space-based distributed sensing\" published in Applied Optics.  Abstract: We describe a general design for a compact frequency comb-based optical time transfer and ranging node with volume of 14 L, mass of 10 kg, and power consumption of 46 W. We assess the residual noise from the comb-based system by making both ranging and time transfer measurements using these compact nodes over a 4.4 km free-space testbed. We demonstrate that this node design has the potential to support sub-femtosecond clock comparisons and sub-micron range measurements at averaging intervals of one second with a mean received power of 20 nW. This is more than sufficient to support future space-based distributed coherent sensing at observing frequencies beyond 1 THz. Fig4a: Time-of-flight measurements from node 1 and node 2. Fig 4b: The difference in measured time of flight between nodes.Fig5: Clock offset measurements between node 1 and 2 based on the 1 m fiber reference arm and 4.4 km link time offset data. Fig6: Timing jitter PSD for one-way time-of-flight, clock offsets, and time-of-flight difference measurements. Fig7: Time deviation for time-of-flight difference and clock offset measurements.", "distribution": [{"downloadURL": "https://data.nist.gov/od/ds/mds2-3799/Fig4a.mat", "mediaType": "application/x-matlab-data", "title": "Fig4a"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-3799/Fig4b.mat", "mediaType": "application/x-matlab-data", "title": "Fig4b"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-3799/Fig7.mat", "mediaType": "application/x-matlab-data", "title": "Fig7"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-3799/Fig6.mat", "mediaType": "application/x-matlab-data", "title": "Fig6"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-3799/README.txt", "mediaType": "text/plain", "title": "README"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-3799/Fig5.mat", "mediaType": "application/x-matlab-data", "title": "Fig5"}], "identifier": "ark:/88434/mds2-3799", "issued": "2025-05-06", "keyword": ["free space optical time transfer", "free space optical ranging", "optical time transfer", "optical ranging", "optical frequency comb"], "language": ["en"], "license": "https://www.nist.gov/open/license", "modified": "2025-04-10 00:00:00", "programCode": ["006:045"], "publisher": {"@type": "org:Organization", "name": "National Institute of Standards and Technology"}, "theme": ["Metrology:Time and frequency metrology", "Physics:Time and frequency", "Physics:Optical physics"], "title": "Data for manuscript entitled \"Compact dual comb time-transfer and ranging for future space-based distributed sensing\""}