Keller was awarded the prestigious Arthur L. Schawlow Prize in Laser Science by the American Physical Society. This award recognizes outstanding contributions to fundamental laser science, highlighting her impact on the field.

She received the IEEE Edison Medal, a highly prestigious award for a career of meritorious achievement in electrical engineering. This underscored her broad impact and contributions to electrical engineering technology and applications of SESAM technology for advanced lasers.

Keller won the Charles Hard Townes Award from Optica (formerly OSA), recognizing outstanding leadership, pioneering innovations, and major contributions to the field of quantum electronics.