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Abstract Integrated electro-optic (EO) modulators are fundamental photonics components with utility in domains ranging from digital communications to quantum information processing. At telecommunication wavelengths, thin-film lithium niobate modulators exhibit state-of-the-art performance in voltage-length product (VπL), optical loss, and EO bandwidth. However, applications in optical imaging, optogenetics, and quantum science generally require devices operating in the visible-to-near-infrared (VNIR) wavelength range. Here, we realize VNIR amplitude and phase modulators featuringVπL’s of sub-1 V ⋅ cm, low optical loss, and high bandwidth EO response. Our Mach-Zehnder modulators exhibit aVπLas low as 0.55 V ⋅ cm at 738 nm, on-chip optical loss of ~0.7 dB/cm, and EO bandwidths in excess of 35 GHz. Furthermore, we highlight the opportunities these high-performance modulators offer by demonstrating integrated EO frequency combs operating at VNIR wavelengths, with over 50 lines and tunable spacing, and frequency shifting of pulsed light beyond its intrinsic bandwidth (up to 7x Fourier limit) by an EO shearing method.
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Hybrid acousto-optic/electro-optic leaky-mode deflectors
We introduce a solution for enabling vertical parallax in solid-state leaky mode devices by integrating an electro-optic (EO) phased array. We present a simple proof of concept for an acousto-optic (AO)/EO modulator deflecting in two axes and describe how this could be refined and adapted for transparent large-format and near-eye holographic displays.
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- Award ID(s):
- 1846477
- PAR ID:
- 10369547
- Publisher / Repository:
- Optical Society of America
- Date Published:
- Journal Name:
- Journal of the Optical Society of America A
- Volume:
- 39
- Issue:
- 4
- ISSN:
- 1084-7529; JOAOD6
- Format(s):
- Medium: X Size: Article No. 766
- Size(s):
- Article No. 766
- Sponsoring Org:
- National Science Foundation
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