March 2023 Issue
Feature Articles
Scientists and engineers are hard at work finding ways to boost the capacity of submarine fiber networks—and to press the fiber into extra service for global environmental sensing.
by Susan Curtis
Topology: Photonics on the Edge
Engineering a material’s “topological phase” can enable robust light propagation that’s resistant to material defects—a possibility that’s opening new application domains in quantum photonics, integrated lasers and terahertz waveguides.
by Andrea Blanco-Redondo
François Arago and the Birth of Interferometry
An excerpt from an upcoming book describes how a handful of 19th-century scientists laid the groundwork for one of the key tools of modern optics.
by David D. NolteDepartments and Columns
Nanotech coating / Möbius strips / Cell sorting / Photon emission / Printable solar cells / Photoacoustic patch / Optically pumped nanolasers / Long quantum network / Glassfrogs / Industry news
Toward Reliable, Widely Available Connections
Vodafone Ghana’s CEO Patricia Obo-Nai will speak at the upcoming OFC conference about harnessing digitalization for effective social change.
Stephen R. Wilk tells the story of a historical optical tool with a peculiar name.
Staffing the Quantum Revolution
How should the emerging quantum technology industry educate and train its future workforce?
For its December 2022 “year in optics” feature, OPN received numerous submissions for cover art. Which cover would you choose?
Also in this Issue
The Enduring Value of Conferences
It’s worth reflecting on the value events like OFC continue to provide.
30, 20, and 10 Years Ago in OPN
Semiconductor lasers; fiber to the home; quantum networks
Medical-device meeting / Fellow stories / Optica Open / Optica community / Foundation recognitions / Optica Ambassadors / Chang Pivoting Fellow / French Physical Society / Career Accelerator / Thank you, editors
Remembering the tremendous impact of a scientist who was known for his work in electronics and photonics.
Remembering an inspiring leader, educator and engineer who was known for his work on 3D display technologies.
Birefringence is created by a randomly crumpled cellophane foil sandwiched between two crossed polarizers. [OPN 2022 After Image Photo Contest]
![Manual probe system with needles for test of semiconductor on silicon wafer. [A. Morozov / Getty]](https://opnmedia.blob.core.windows.net/$web/opn/media/images/articles/2025/1125/departments/202511-cover-web.jpg?ext=.jpg)
![Researcher Clara Saraceno in the lab. [Image by Carsten Behler Photography]](https://opnmedia.blob.core.windows.net/$web/opn/media/images/articles/2025/1025/departments/202510-cover-web.jpg?ext=.jpg)
