AAOI ▼ -2.3% - Applied Optoelectronics, Inc. $AAOI Applied Optoelectronics plans to demonstrate live downstream operation of its Quantum30 3.0GHz concept over coaxial infrastructure at SCTE TechExpo in Atlanta, September 29–October 2. • Live hardware: The demonstration combines a 3.0GHz amplifier, SC-QAM and OFDM channels, and a signal generator. • Technical scope: Quantum30 explores spectrum expansion beyond the 1.8GHz frequency supported by DOCSIS 4.0. • Engineering work: AOI’s accompanying white paper examines attenuation, power, thermal, and signal-integrity challenges in 3.0GHz HFC networks. • Design options: AOI is evaluating multiple next-generation amplifier architectures, building on its Quantum18 engineering work. • Operator feedback: AOI says the demonstration will help gather customer input before future 3.0GHz standards are set. 24-SEP-2026 07:50 AM ET