Frequency scaling of speech signals is a useful method for reducing the bandwidth requirements in analog and digital speech transmission systems.1"5 In analog systems the frequency compressed signa
D URING World War II, single-channel and multichannel frequencyshift radio telegraph systems proved of the utmost importance in providing the Allied Powers with a world-wide automatic printing tele
Frequency dependent cyclotron resonance measurements are reported on Ga(.47)In(.53)As-InP and Ga(.47)In(.53)As-Al(.48) In(.52)As heterostructures.
The variational equations that describe the propagation and interaction of two pulses of different frequency are derived from the nonlinear Schroedinger equation and used to obtain analytical formu
A possible experimental determination of the elements of the permeability tensor of a magnetized ferrite at any frequency and magnetic field rests 011 the measurement of the frequency shift that th
Frequency stabilization of FDM optical signals to a comb of equally-spaced frequencies has been demonstrated for optical signals originating from different locations.
We report a heterodyne beat with a line width of 5.6 ± 0.6 Hz between two cavity-stabilized quantum cascade lasers operating at 8.5 micron.
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.
