Publications

Several methods have been demonstrated for making splices in optical fibers.

The author proposes, for future wavelength-division-multiplexing (WDM) optical networks, new wavelength routers with reduced losses and improved wavelength response.

We report the design, fabrication and performance of a fiber- pigtailed, broadband traveling-wave X-cut Ti:LiNbO3 phase modulator for lambda = 1.55micron with 1.8 dB total insertion l and 8 volt m

We discuss the development of a monolithically integratable optical isolator. The device is a semiconductor optical amplifier with a magnetized ferromagnetic metal contact.

A low-noise 1-W cladding-pumped Er/Yb fiber amplifier amplifies analog video signals from a 50-km supertrunk and delivers them to 256 nodes in a standard HFC architecture or 512 fiber nodes in a FT

Low-noise amplification of high-power pulses in multimode erbium/ytterbium-doped fibers is demonstrated.

An expression for the theoretical noise factor is given and the method of measurement is described. The tube is all-metal with coaxial input and output connections.

Large numbers of solid-state, low-noise receivers that can be built into compact low-cost radio transmission systems are needed for future terrestrial and satellite communication systems.

Massive multiple input multiple output (MIMO) transmission and coordinated multipoint transmission are candidate technologies for increasing data throughput in evolving 5G standards.

A report is presented on the performance of a low-power 100 GHz high-speed shuntpeaked regenerative frequency divider (RFD) fabricated in a low-cost 200/180 GHz f(T)/f(max) 0.18 mu m SiGe BiCMOS te