Fiber Optic transmission is the most efficient means to transmit RF signals over long distance. Fibers show a lower signal loss, are lighter and less expensive than coaxial cables. Light from a laser diode is modulated by the RF signal either by direct modulation of the injection current into the laser diode or by an external modulator, thus converting the electronic RF signal into an optical signal.
On the second end of the fiber, the receiver uses a high-speed, high linearity InGaAs PIN photodiode to convert the optical signal back to an electrical RF signal. Using advanced fiber optic multiplexers, up to 8 signals can be transmitted over a single fiber with high isolation (>60dB) among the channels.
Alternatively, signals can be transmitted over a fiber in both directions simultaneously, by using different optical wavelengths as carriers.
- Frequency range: up to 20 GHz.
- RF Gain: 0dB.
- RF connectors : SMA, N type.
- Fiber: Single mode fiber (SMF).
- Wavelength:1550, 1300nm.
- Optical Connectors: Angle-polished connectors (APC) – FC, SC, LC & ST