The BPD-M-70G-PM is a high-performance balanced photodetector receiver module designed for the C-band wavelength range. It features a typical 3 dB bandwidth of 70 GHz and a responsivity of ≥0.35 A/W. The device integrates an internal bias circuit at the optical port and incorporates a 50 Ω broadband impedance matching network. This product is suitable for applications including DPSK optical communication, instrumentation testing, and LiDAR detection systems.
Parameter | Symbol | Test Condition | Min. | Typ. | Max. | Unit |
Operating Wavelength | λ | — | 1525 | 1550 | 1570 | nm |
Responsiveness | R | VPD+= +2 V,VPD- = -2V, P light= 0 dBm, λ=1550 nm | 0.35 | 0.4 |
| A/W |
Responsivety | Rimb | Rimb=10·log10|（RPD+/ RPD- )| |
| 0.3 | 0.6 | dB |
Polarization Correlation | PDL |
|
| 1 |
| dB |
Dark current | Id | VPD+ =+2V ，VPD- =-2V |
| 20 | 200 | nA |
3dB Bandwidth | BW | VPD+ = +2V ，VPD- = -2 V, P light= 0 dBm, λ = 1550 nm | 60 | 70 |
| GHz |
Radio frequency echo reflection | S22 | DC-67GHz |
|
| -5 | dB |
Common-mode rejection ratio | CMRR | CMRR=20 ·log10|（S21PD+-S21PD- ）/（S21PD+ - S21PD-）| |
| 15 |
| dB |
Saturation optical power | Psat | VPD+ = +2V ，VPD- = -2 V, λ=1550 nm |
| 7 |
| dBm |
Note: Unless otherwise specified, the test temperature is 25°C.
Typical Test Curve
Usage Instructions：
1. Appropriate ESD protection measures should be implemented to prevent electrostatic discharge (ESD) damage.
2. Do not pull or apply excessive force to the tail fiber directly, as this may damage the optical component.
3. Keep the optical connectors clean and free from dust or contaminants to ensure optimal optical performance.
Maximum Absolute Rating Value
Parameters | Symbol | Rated Value | Unit |
Optical Power | Ps | 10 | dBm |
Forward Bias Voltage | Vr | 5 | V |
Operating Temperature | Top | -40 ~ +70 | ℃ |
Storage Temperature | Tstg | -40 ~ +85 | ℃ |
Soldering Temperature | Tp | 260 (10s) | ℃ |
Minimum Fiber Bending Radius | Rfiber | 20 | mm |
