Photonics

Partitioned-Interval Quantum Optical Communications Receiver

The receiver structure described here improves upon the performance of optical communications links, achieving high sensitivity and high data rates even with extremely weak optical signals.

The proposed quantum receiver in this innovation partitions each binary signal interval into two unequal segments: a short “pre-measurement” segment in the ...
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Cobra Fiber-Optic Positioner Upgrade

This technology could be used for applications requiring precise location of a small object within a small circular area, such as in medical lasers.

A prime focus spectrometer (PFS), along with corrective optics, will mount in place of the secondary mirror of the Subaru telescope on Mauna Kea, ...
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Practical UAV Optical Sensor Bench With Minimal Adjustability

A multiple-pass optical platform eliminates essentially all optical alignment degrees of freedom, save one. A fourpass absorption spectrometer architecture is made rigid by firmly mounting dielectric-coated mirror prisms with no alignment capability to the platform. The laser diode beam is collimated by a small, custom-developed lens, which has only a ...
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