DC-stable electro-optic modulators using thin-film lithium tantalate
Year: 2024
Type: article
Abstract: We demonstrate telecommunication-wavelength Pockels electro-optic modulators in thin-film lithium tantalate (TFLT) with superior DC stability compared to equivalent thin-film lithium niobate (TFLN) modulators. Less than 1 dB output power fluctuation for quadrature-biased TFLT is measured compared to 5 dB with TFLN over 46 hours with 12.1 dBm input power. Our TFLT modulators maintain properties similar to those in TFLN: 3.4 Vcm half-wave voltage length product, 39 dB extinction ratio, flat RF electro-optic response from 3-50 GHz, and 0.35 dB on-chip loss. We also show low error-rate data modulation over 0-70°C with TFLT modulators and optical loss of 9 dB/m.
Source: Optics Express
DOI: 10.1364/oe.538870
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
Funders: National Science Foundation, National Aeronautics and Space Administration, Harvard University, Amazon Web Services, Nuclear Safety and Security Commission, Division of Electrical, Communications and Cyber Systems, Air Force Office of Scientific Research, Naval Air Warfare Center, Aircraft Division
OpenAlex ID: W4404066555