The 1550 nm wavelength region has become a preferred choice for spaceborne optical systems due to its eye-safe nature, low atmospheric absorption, and compatibility with high-power fiber lasers. Acousto-optic modulators (AOMs) operating at this wavelength enable rapid beam steering, pulse picking, and frequency shifting—capabilities that are critical for satellite-to-ground...

Fiber optic acousto-optic modulators (AOMs) are critical in quantum communication systems, where precise frequency shifting and phase stability are paramount. Unlike bulk AOMs, fiber-coupled AOMs minimize insertion loss and alignment issues, making them ideal for quantum key distribution (QKD) and entangled photon generation. This blog explores how fiber AOMs achieve ultra-stable frequency...