To meet domestic customers' demand for fully localized high-speed photodetector (PD) products, Fiberwdm has developed two high-speed PD products with bandwidths exceeding 18GHz and 40GHz after nearly 2 years of R&D and optimization. The 18GHz PD has a rise time of less than 20ps, and the 40GHz PD has a rise time of less than 8.5ps. Their responsivity is no lower than that of similar imported products from Finisar, Thorlabs, etc., and the tail oscillation is also well controlled.
This series of high-speed detectors does not include a Transimpedance Amplifier (TIA) and features extremely low noise. It can be used for testing high-speed communication systems and femtosecond laser systems, and is a cost-effective fully localized product.
The linear power supply independently developed by Fiberwdm can fully meet the requirements of high-speed detectors in scientific research applications.
High-Speed Detectors HSPD4018 & HSPD4040
User Instructions
1.1 Appearance and Interface Description
Module appearance is shown below:
Figure 2-1 Detector Module Appearance (Left), High-Speed Bare PD (Right)
1.2 Electrical Specifications
1. Output Interface: SMA (female) or 2.92mm
2. Spectral Response Range: 1000nm–1700nm
3. Detector Responsivity: >0.7A/W @1550nm
4. Caution: Do not exceed the saturation optical power for optical input.
2 Performance Parameters
2.1 Test Parameters for High-Speed Detectors (HSPD4018, HSPD4040)
Model |
HSPD4018 |
HSPD4040 |
Wavelength Range |
1000nm - 1700nm |
1000nm - 1700nm |
3dB Cut-off Bandwidth |
18GHz |
>40GHz |
Conversion Gain |
35V/W |
35V/W |
Saturation Optical Power |
10mW |
10mW |
Rise Time (10%–90%) |
<20ps |
<8.5ps |
Typical Max. Responsivity |
>0.7A/W @1550nm |
>0.7A/W @1550nm |
Output Reflection Coefficient (S22) |
<-2dB |
<-2dB |
Amplitude Flatness |
<±2dB |
<±2dB |
Maxim Output |
0.35V |
0.5V |
Max Incident Power |
30mW |
30mW |
Detector Material/Type |
InGaAs/PIN |
InGaAs/PIN |
Operating Temperature |
-40℃~85℃ |
-40℃~85℃ |
Optical Input |
FC/PC or FC/APC |
FC/PC or FC/APC |
Electrical Output |
SMA or 2.92mm |
SMA or 2.92mm |
Power Supply |
+12V/100mA |
+12V/100mA |
Figure 3-1 Summary of Electrical Performance
Figure 3-2 HSPD4018 Pulse Response Curve
Figure 3-3 Pulse Response Curve
Mechanical dimension diagram of the high-speed detector
Figure 4-1 Mechanical dimensions diagram of the high-speed detector module
Figure 4-2 Mechanical dimensions of the high-speed PD
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