Publications

We demonstrate a receiver module which associates a preamplified detector chip with a transimpedance amplifier for next generation PON network.

The high-input-sensitivity decision DFF IC was designed and fabricated in a self-aligned InP DHBT technology.

We demonstrate the detection of speech signals and footsteps through a novel polarization-multiplexed coded differential-phase OTDR (optical time domain reflectometry) interrogation of standard tel

A 1.5micron optical pre-amplifier was used to improve the sensitivity of a PIN-FET receiver by 12 dB.

A new method for acceptor determination by electronic Raman in bulk semi-insulating GaAs is reported.

We report a Ga(0.47)In(0.53)As photoconductive detector with a receiver sensitivity better than that of a Ga(0.47)In(0. 53)As pin photodiode.

By increasing the quantum well barrier width, we have dramatically reduced the tunneling dark current by an order of magnitude and thereby significantly increased the black body detectivity D sub B

We demonstrate miniature Mach-Zehnder-interferometer with a device length of 179.5 μm using two micro-abrupt-tapers in a cladding-depressed strongly-guiding fiber.

We review high sensitivity modulation formats and in particular, review the principle, implementation, and performance of formats based on the combined use of polarization-division-multiplexed quad

Newly introduced polarization diversity probing codes are suggested to enhance the sensitivity and bandwidth performance of differential-phase-sensitive distributed OTDR systems.