RF Over Fiber (RFoF) Up to 40 GHz

RF over Fiber (RFoF) solutions convert analog RF signals into optical signals which are then transmitted over optical fibers and converted back to RF signals at various bands.  RFoF Solutions are designed to replace coax cables that degrade RF signals over long distances, typically longer than 150 ft.

RFOptic’s easy-to-use RFoF solutions are mainly used to connect remote antennas to central in-door locations over optical fiber in Communications, Satcom, Cellular, Defense, DAS, A/V and GPS applications. Since fiber is lighter than coax RFoF solutions are also used in weight sensitive application such as space, marine, airborne and balloon-based communication applications.

RFOptic’s Low Frequency solutions support up to 6 GHz while the High Frequency solutions support up to 40 GHz.  See below for details:

 RFOptic’s Supported Standard Radar Frequency Letter-Band

BandFrequency RangeBandFrequency Range
HF3 MHz to 30 MHzC band4 to 8 GHz
VHF30 to 300 MHzX band8 to 12 GHz
UHF0.3 to 1 GHzKu band12 to 18 GHz
L band1 to 2 GHzKa band26 to 40 GHz
S band2 to 4 GHz

High Frequency RF over Fiber (RFoF) modules

The RF parameters such as S21, NF, and P1dB that are detailed on the spec sheets can be customized to requirements.

Customization through programming

The embedded LNA and attenuators can be adjusted through the GUI to achieve the desired system link gain (S21), Noise Figure (NF), and P1dB (1 dB Compression point). The free RFoF link simulator tool can be used to determine how the embedded LNA and attenuator should be set up to meet the required link budget.

Furthermore, the solution has Optical and RF diagnostic capabilities for Tx, Rx modules and the RFoF link. These features save the cost of test equipment and provide the real-time diagnostic for any deployed link.

Programmable RFoF Links

Unidirectional RFoF LinkDescriptionTx Module Part#Rx Module Part#
RFoF-2GHz-1310 Prog0.5 MHz - 2.5 GHz, 1310 nm *RFoF2T3FR-PA-11RFoF2R3FR-PA-11
RFoF-2GHz-1310 Prog GPSGPS Over Fiber with Bias-TRFoF2T3FT-PA-11RFoF2R3FR-PA-11
RFoF-3GHz-1310 Prog0.5 MHz - 3 GHz, 1310 nm*RFoF3T3FR-PA-11RFoF3R3FR-PA-11
RFoF-4GHz-1310 Prog0.5 MHz - 4 GHz, 1310 nm*RFoF4T3FR-PA-11RFoF4R3FR-PA-11
RFoF-6GHz-1310 Prog0.5 MHz - 6 GHz, 1310 nm*RFoF6T3FR-PA-11RFoF6R3FR-PA-11
RFoF-6GHz-1550 Prog0.5 MHz - 6 GHz, 1550 nm*RFoF6T5FR-PA-11RFoF6R5FR-PA-11

Bidirectional RFoF LinkDescriptionTransceiver 1Transceiver 2
RFoF-2G-5531S-B1​2.5 GHz Bidirectional, 1550 & 1310 nm RFoFB2T3R5SR-11RFoFB2T5R3SR-11
RFoF-3G-5531S-B13 GHz Bidirectional, 1550 & 1310 nmRFoFB3T3R5SR-11RFoFB3T5R3SR-11
RFoF-6G-5531S-B16 GHz Bidirectional, 1550 & 1310 nmRFoFB6T3R5SR-11RFoFB6T5R3SR-11
*Other wavelengths optional

High SFDR High Frequency RFoF Configuration Options

 No AmplificationPreAmp **PreAmp & PostAmp * **PostAmp *
18 GHzRFoF-18GHz- Q0-MiniRFoF-18GHz-Q1-MiniRFoF-18GHz-Q2-MiniRFoF-18GHz-Q0-Mini-P
20 GHzRFoF-20GHz- Q0-MiniRFoF-20GHz-Q1-MiniRFoF-18GHz-Q2-MiniRFoF-18GHz-Q0-Mini-P
30 GHzRFoF-30GHz- Q0-MiniRFoF-30GHz-Q1-MiniRFoF-18GHz-Q2-MiniRFoF-18GHz-Q0-Mini-P
40 GHzFoF-40GHz- Q0-MiniRFoF-40GHz-Q1-MiniRFoF-18GHz-Q2-MiniRFoF-18GHz-Q0-Mini-P
* Unity Gain or Higher
** Low Noise Figure