December 2019 Issue
Feature Articles
Winners of OPN's 2019 Photo Contest
Congratulations to the winners of OPN’s 14th annual After Image photo contest.
Departments and Columns
A Quarter-Century of Optical Network Research
A pioneering research group in optical communications celebrates its 25th anniversary—and looks at the road ahead.
Taking Hyperspectral Imaging Global
Norwegian HSI company HySpex is supplying a worldwide market with turnkey solutions to complex problems.
Some Inspiration for Future Professors
A recently published book by Anna Garry explores the experiences and accomplishments of 23 women professors.
Also in this Issue
30, 20, and 10 Years Ago in OPN
Optical learning machine; Bose-Einstein condesate; far-field lensing.
OSA at RIAO OPTILAS / ICO-25 / OSA Fellow stories / UA honors Rolland-Thompson / 5G Summit / OSA at NIST/JILA / Optics outreach / GEMM initiative opens first center / Thank you, editors and volunteers

![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)