Researchers design electro-optic modulators for visible to near-infrared wavelengths

A new type of electro-optic modulator controls the shorter, visible wavelengths of the optical spectrum—and breaks limits on how fast and efficiently visible modulators can operate.

Marko Lončar’s group at Harvard University’s Laboratory for Nanoscale Optics (Cambridge, MA) specializes in developing thin-film lithium niobate (TFLN) devices that operate at telecommunications wavelengths (~1550 nm). But they noticed many applications in fields such as quantum information sciences, sensing, and ultrafast data communications could benefit from visible to near-infrared (VNIR; ~400 to 1000 nm) TFLN devices.

So the researchers designed electro-optic modulators to operate at VNIR wavelengths (see figure).

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https://www.laserfocusworld.com/optics/article/14292293/researchers-design-electrooptic-modulators-for-visible-to-nearinfrared-wavelengths