American Institute of Physics

Improved design for terahertz modulation of high-speed communications

Terahertz modulation is essential for high-speed communication systems, but a long-standing trade-off between low insertion ...
EDN

Audio modulator design cuts size, cost of pro speakers

A sound amplification technique from SLS Loudspeakers (Springfield, MO) promises to reduce the size and cost of high-power, professional quality speakers. The approach, dubbed Evenstar, uses a pair of ...
EDN

Tutorial on Designing Delta-Sigma Modulators: Part 1

The transition from second-generation (2G) to third-generation (3G) wireless cellular systems requires multi-standard adaptability in a wireless receiver. An important answer to this request is the ...
Nasdaq

OpenLight and Tower Semiconductor Achieve Breakthrough in 400G/Lane Silicon Photonics Platform for Next-Generation Optical Communications

OpenLight and Tower Semiconductor have announced a successful demonstration of a 400G/lane modulator on Tower's silicon photonics platform, PH18DA, which achieves over a 3.5dB extinction ratio using ...
Electronic Design

Standard CMOS Yields Integrated Photonic 100-Gb/s Optical Modulator

Researchers devised an electro-optical modulator that can be fabricated using standard CMOS processes and achieve over 100-Gb/s performance, with power requirements of 2 pJ/bit. Due to materials ...
Electronic Design

QPSK Demodulator Is A Good Match For Low-Cost Modulator

This demodulator is suitable for the quadrature phase-shift keying (QPSK) modulator previously published by the same author, "Novel Low-Cost QPSK Modulator Needs No Adjustments" (electronic design, ...