------KY-PD -18G-SM-HP
Features
lSpectral range 940~ 1650nm
l3dB bandwidth 18GHz
lResponsivity> 0.80A / W
lHigh optical power handing >50mW
lSmall size
lHermetically sealed
lHigh reliability
lSMA  output
Applications
lRF over Fiber Links
lLIDAR
lHigh-speed pulse measurement
Description 
KY-PD-18G-SM-HP InGaAs PIN photodetector is used for the high dynamic range analog RF links over fiber. It’s high-performance PIN detector, which has the characteristics of high bandwidth, high responsivity, flat gain, small size, etc. The power supply is DC 5V, and the connector is FC / APC. SMA output port, mainly used in high-speed optical fiber transmission system, ROF, optical fiber sensing system.
Parameters
| Parameters | Symbol | Min. | Typ. | Max. | Unit | 
| Spectral response | l | 940 | 
 | 1650 | nm | 
| Dark current(VR=5V) | Id | 
 | 3 | 20 | nA | 
| Responsivity(VR=5V) | R | 0.80 | 0.85 | 
 | A/W | 
| Bandwidth | BW | 18 | 
 | 
 | GHz | 
| Optical return loss | ORL | 30 | 
 | 
 | dB | 
| Saturated optical power | Ps | 
 | 50 | 
 | mW | 
| Fiber | 
 | Smf-28e | 
| Fiber connector | 
 | FC/PC、FC/APC or user specified | 
| Electrical return loss | S11 | 
 | -12 | -10 | dB | 
| Input impedance | ZRF | 50 | W | 
| Electrical interface | 
 | SMA(f)  | 
Absolute Maximum Ratings
| Parameters | Symbol | Unit | Min. | Typ. | Max. | 
| Input optical power | Pin,Max | mW | 
 | 
 | 60 | 
| Bias voltage | Vbias | V | 5 | 
 | 12 | 
| Operating temperature | Top | ºC | -40 | 
 | 70 | 
| Storage temperature | Tst | ºC | -45 | 
 | 85 | 
| Humidity | RH | % | 5 | 
 | 90 | 
| Lead soldering temperature | 
 | ºC | 
 | 
 | 260 | 
| Lead soldering duration | 
 | s | 
 | 
 | 10 | 
| Fiber yield strength | 
 | kgf | 1 | 
 | 
 | 
| Fiber bend radius | 
 | mm | 30 | 
 | 
 | 
Test curve


Fig1. S21 curve with input optical power
Dimensions (Unit: mm)
                             
                                                                                         
                               