------ KY-FOL-18G series
Features
lFrequency range 0.1~18G, others optional
lGain >0dB
lFlatness± 1.5dB
lWide dynamic range
lFully transparent working method,
lOperating wavelength optional
lIntegrated APC & ATC circuits
lBuilt-in low noise amplifier
lCan be customized
Application
lRemote antennas
lLong-distance analog fiber optic communication
lMilitary three-wave communications
lTracking, Telemetry & Control (TT&C)
lDelay lines

Product Introduction
The KY-FOL-18G series analog wideband direct-modulated RF fiber link adopts direct modulation and direct detection to realize the long-distance transmission of wideband RF signals through optical fiber. A highly linear direct-tuned DFB laser (DML) is used at the transmitter end, which integrates automatic power control (APC) and automatic temperature control (ATC) circuitry, and a PIN broadband photodetector with high responsivity and high saturation power is used at the receiver end. Low-noise broadband amplifiers can be configured in the front end or back end according to customer needs, which is easy to use and flexible to configure.
Due to the avoidance of expensive coaxial cables or waveguides, the signal quality and reliability of microwave communication can be greatly improved, the optical fiber link is fully transparent working mode suitable for various signal coding, communication standards, network protocols can be widely used in long-range wireless, timing and reference signal distribution, telemetry and delay lines and other microwave communication fields.
Parameters
Parameters | Symbol | KY-FOL-18G-10 | KY-FOL-18G-00 | KY-FOL-18G-01 | Unit | Remark |
Frequency range* | F | 1~18G | 0.1-18G | Hz |
|
Gain* | G | 6±2 | -23±2 | 0±2 | dB |
|
Gain flatness | DG | ± 1.5 | dB |
|
Noise figure* | NF | <17 | 32 @1GHz,<50@18GHz | dB |
|
Input 1dB compression point* | Pi,1dB | -15 | 15 | 10 | dBm | @10GHz |
Input third-order intermodulation** | IIP3 | >0 | >18 | dBm | @10GHz |
Spurious |
| >80 | dBc |
|
Harmonic wave |
| >40 | dBc |
|
Gain change at full temperature |
| ± 2 | dB |
|
Lsolation |
| >80 | dB |
|
Maximum input rf power*** | P | 10 | 18 | dBm | No damage |
VSWR | VSWR | IN<1.8:1,OUT<2.2:1 |
| Full band |
Input/output impedance | Z | 50 | W |
|
Operating voltage | Vo | 12 | V |
|
power consumption | Pc | <2 | W |
|
RF interface |
| SMA(f) |
|
|
Optical interface |
| FC flange, FC/APC, 2.0mm narrow key |
|
|
Power supply interface |
| 2p penetrating capacitor/DC 2.0 plug |
|
|
Size |
| 100x80x25mm |
| TX is the same as RX |
*The test condition is to connect a 1m single-mode fiber patch cord, please contact our company for other parameters;
** Two-tone test, total power 0dBm.
Optical Parameters
Parameter | Lea. | Typ. | Utmost | Unit |
Output optical power @TX | 1 | 7 | 10 | dBm |
Operating wavelength | 1310/1550, DWDM | nm |
Device type | DFB/InGaAs PIN |
|
Responsiveness @RX | 0.85 | 0.9 |
| A/W |
Fiber type | SMF-28e ordinary single-mode fiber |
|
Absolute Maximum Ratings
Parameter | Min. | Typ. | Max. | Unit |
Operating voltage | 9 | 12 | 15 | V |
Operating temperature | -40 |
| +70 | ºC |
Storage temperature | -40 |
| +85 | ºC |
Operating relative humidity | 5 |
| 95 | % |
Characteristic curves


KY-FOL-18G-00/01
Dimensions(unit: mm)

Dimensions of transmitting and receiving parts