LUNA Innovations

BPD-003 OEM Balanced Photodetector

The BPD-003 is a small, low noise, DC coupled balanced detector for OEM applications.

The BPD-003 combines an optical head and a post-amplification board with an SMB RF output connector. The optical head consists of two input fibers aligned with a pair of balanced photodetectors followed immediately by an integrated low noise transimpedance amplifier (TIA). The post-amplification circuit further conditions and amplifies the output signal to a range of ± 3.5 V. The device is packaged in a small, lightweight shielding box. It has a bandwidth of up to 230 MHz.

Key Features

  • Low noise
  • High CMRR
  • High conversion gain
  • Compact

Specifications

Wavelength range
1060, 1310, or 1550±50nm
Transimpedance gain at 50Ω
(TIA + post-amplifier)
50 × 103 V/A
Conversion gain at 50Ω
>40 × 103 mV / mW at 1550nm
>35 × 103 mV / mW at 1310nm
>25 × 103 mV / mW at 1060nm
RF bandwidth (3 dB)
DC-230 MHz standard
CW balanced saturation power
36 μW at 1550nm
42 μW at 1310nm
58 μW at 1060nm
NEP (DC-100 MHz)
<6 pW/√Hz
CMRR
> 35 dB (DC to 40MHz)
> 15 dB (40 to 200MHz)
RF output voltage
(linear range)
±1.75 V at 50Ω load
±3.5 V at high impedance load
Dimensions
1.95” (L) × 0.85” (W) × 0.65” (H)

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