Hello,

We noticed you're browsing in private or incognito mode.

To continue reading this article, please exit incognito mode or log in.

Not a subscriber? Subscribe now for unlimited access to online articles.

Intelligent Machines

Light Twister

The data-carrying light waves in optical fibers have either horizontal or vertical polarities. Both types of waves are easily processed in today’s millimeter-scale photonic devices, but polarization differences may lead to signal loss in future micrometer-scale devices on chips. This submicrometer structure from MIT’s Research Laboratory of Electronics can be etched into silicon. Light enters a waveguide and is split into horizontal and vertical components. Vertical beams are rotated to horizontal for processing and later recombined.

More from Intelligent Machines

Artificial intelligence and robots are transforming how we work and live.

Want more award-winning journalism? Subscribe to Print Subscription.
  • Print Subscription {! insider.prices.print_only !}*

    {! insider.display.menuOptionsLabel !}

    Six print issues per year plus The Download delivered to your email in-box each weekday.

    See details+

    12-month subscription

    Print magazine (6 bi-monthly issues)

    The Download: newsletter delivery each weekday to your inbox

/3
You've read of three free articles this month. for unlimited online access. You've read of three free articles this month. for unlimited online access. This is your last free article this month. for unlimited online access. You've read all your free articles this month. for unlimited online access. You've read of three free articles this month. for more, or for unlimited online access. for two more free articles, or for unlimited online access.