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IPITEK's products cover pure analog transmission for direct conversion to analog television signals, QAM transmission for digital video, internet, and other digital signals sent over the cable networks, and binary digital transmission for backbone networks. These all can be applied to government systems; however, analog transmission has received a lot of interest because sensors used by the defense department and other agencies can have their output directly impressed onto optical carriers by using analog modulation. This is attractive because it requires no analog-to-digital conversion or signal processing at the sensor itself. IPITEK is involved with high-performance versions of these analog links, developing applications and improved performance.
A primary direction of research at IPITEK is reduction of the optical power required by high performance analog links. In order to achieve high dynamic range, direct-detection analog links require high optical power (several mW) transmitted to the receiver. This can cause problems in several applications. One example of this is mixed-signal transmission
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