MARKETS
FiveNine Optics is essential to emerging technologies because they require optics with uncompromised performance and durability. Applications in trace-gas sensing, physics, and quantum computing rely on optics with exceptionally low losses to achieve high finesses in optical cavities. At the same time, Directed Energy and Fusion programs demand coatings with extremely high LIDT, strong FOD resistance, and availability in large formats.
DIRECTED ENERGY
FiveNine Optics has advanced the field readiness of today’s highest-power HEL systems through significant breakthroughs in FOD resistance. Coupled with our ability to produce large-format optics at 750 mm and beyond, FNO has become a critical contributor to the future of directed-energy–based air defense.
FUSION
Fusion energy is a challenging but essential pursuit for humanity’s future. Fusion reactors (and high-power laser systems used to ignite fusion) create extremely demanding environments. FNO is continuously expanding the limits of what optical components can withstand and what can be produced at scale, delivering the high-LIDT and large-format optics required to support the next breakthroughs in fusion development.
QUANTUM
Many quantum systems depend on precision optics and high-finesse cavities to probe and manipulate qubits. For years, FNO has supplied leading atomic-physics groups with the lowest-loss mirrors available. Those same scientists—and the optics they rely on—are now driving the breakthroughs that are defining modern quantum technology. As quantum platforms scale in complexity and performance demands grow, FNO remains a crucial partner in enabling the next generation of quantum innovation.
SCIENCE
At FNO, we take pride in supporting scientific research at every scale. Whether you’re building a benchtop experiment or developing a large, complex system, we provide the same level of care, precision, and collaboration. Having partnered with many research groups over the years, we understand the demands of scientific optics and work closely with teams to deliver the high-quality components their projects depend on. FNO is here to help make your science possible.
TRACE GAS SENSING
Cavity Ring-Down Spectroscopy relies on ultra-low-loss mirrors to achieve the long photon lifetimes that give the technique its sensitivity. FiveNine Optics supplies highly-stability, ultra-low-loss mirrors needed for reliable, repeatable CRDS performance at the limits of detection. As a trusted partner to the CRDS instrument industry, FNO delivers the mirror quality, consistency, and expertise essential for building world-class analyzers and advancing measurement capabilities.