Abstract: An apparatus, system, and method for affordably distributing cable communication signals at greatly reduced power consumption levels with high signal quality with an active tap having gain stage characterized by low power (less than 1 Watt), low noise figure (less than 3 dB), high bandwidth (typically 2 GHz), and high gain (at least 15 dBmV).

Abstract: A semiconductor laser diode for transmitting optical signals in a telecommunications network is housed within a module supported adjacent to a thermoelectric cooling element that is mounted in thermally conductive contact with a heat sink. The cooling element is positioned externally on the surface of the module. The adjacent surface areas of the module and the cooling element are brought into thermal conductivity by a thermally conductive filler occupying the space between the module and the cooling element. The filler conforms to the configuration of the adjacent surfaces of the module and the cooling element to increase the thermal conductivity therebetween for maximum efficiency in the transfer of heat from the laser diode through the module to the cooling element and the heat sink.

Abstract: In a transfer linearization (TL) circuit one or more biased nonlinear elements form a nonlinear attenuator and a biased network to allow adjustment of diodes to linearize the overall transfer of the TL circuit and an amplifier being linearized. The transfer linearization circuit reduces distortion encountered in a broadband RF amplifier. The circuit compensates for attenuation of amplified broadband signals in CATV systems. The transfer linearization circuit provides low insertion loss and requires very low power consumption. Nearly constant impedance and constant insertion loss is provided across a wide frequency range and reduces both in-band and out-of-band third order distortions. The TL circuit exhibits instantaneous amplitude and phase transfer correction. No tuned frequency selective components are required so that adjustments are relatively straightforward.