Scientific, nautical, surveying, photographic, optical, measuring, signaling, and checking apparatus and instruments, namely, superluminescent light emitting diodes (SLEDs), light emitting diodes (LEDs), laser diodes, swept sources, namely, fiber-coupled turn-key lasers for scientific or industrial use, semiconductor optical amplifiers, fiber-optic gyroscopes for navigation instruments, fiber optic test equipment, namely, optical fibers or fiber optical connectors for measuring performance of...