Publications

The authors consider, experimentally and theoretically, the quantum frequency translation (i.e., noiseless conversion) of quantum states of light, including single-photon states.

: We study the effect of frequency translation of single-photon states in optical fiber through use of the Bragg scattering four-wave mixing process.

The transmission frequency or range of frequencies most suitable for the system is considered.

We drive a new frequency-domain adaptive algorithm by using a frequency-domain recursive least squares criterion, minimizing an error signal in the frequency-domain.

The frequency-domain DPSK (differential-phase-shift-keying) method for ultrafast laser pulses has been demonstrated by using an AOM-based pulse shaping technique for modulation and the spectral int

In exploring the possibility of providing digital mobile communications service to a large number of users, we have investigated a spreadspectrum modulation technique using frequency-hopped frequen

Mobile radio telephone systems are required to operate in a hostile environment compared to radio systems using terrestrial and satellite links.

Near future on-board telemetry, tracking and command (TT&C) equipment for secure communications will likely adopt frequency hopping (FH) instead of direct sequence (DS) spread spectrum (SS) tec

T w o major impairments of mobile radio communication systems are interference from other users and multipath fading.

The frequency of an InGaAsP DFB laser has been locked to the 2p sub (10) - 3d sub 5 transition of Argon atoms at 1.2960microns using the optogalvanic signal obtained from a commercial miniature gl