A direct modulation bandwidth of 66 GHz has been achieved from two daisy-chained VCSELs, and the principle could be scaled up to reach over 100 GHz. An international research team has shown that a ...

A laser configuration known as a composite-resonator vertical-cavity laser (CRVCL) could offer the key to high-speed optoelectronics. A team from the University of Illinois at Urbana-Champaign has ...

Diverse well describes the myriad digital modulation schemes used in modern voice and data communications. The alphabet soup of terminology extends well beyond the familiar QAM and GMSK fundamentals ...