SI Free-Space Balanced Photoreceiver, 320-1000nm

Product Details Subtracts Two Photodiode Signals for Differential Detection Improved Signal to Noise Ratio (SNR) for Weak or Modulated Optical Signals High Common-Mode Noise Suppression for Improved Measurement Sensitivity and Accuracy Available in Si and InGaAs models for UV-VIS and NIR spectral ranges Balanced Photoreceivers use true differential detection by subtracting the photocurrents from two matched photodiodes, producing a single electrical output proportional to the difference in optical power between the two inputs. This suppresses common-mode noise, such as laser intensity fluctuations, improving SNR and measurement sensitivity. Balanced Photoreceivers are engineered with a low-noise transimpedance amplifier, which ensures stable, consistent performance for precision optical measurements. Available in Si and InGaAs models for UV-VIS (320-1000nm) and NIR (800-1700nm) spectral ranges, these photoreceivers are ideal for coherent optical detection, interferometry, spectroscopy, and optical coherence tomography (OCT). Note: Power supply sold separately. Please see specifications for more details. Specifications General Note: Includes: (2) Threaded coupler ring Lemo3-pin connector (3) Adapter SMA (male) to BNC (female) Datasheet Physical & Mechanical Properties Weight (g): 410 Dimensions (mm): Case Size: 80 x 80 x 30.5 Optical Properties Spectral Range: 320 – 1000 nm Sensor Detector Type: Si-PIN photodiode Electrical Transimpedance Gain (Ω): 2 x 10 4 or 6 x 10 4 (switchable) Noise Equivalent Power NEP (W/ Hz 1/2 ): 7.4 x 10 -12 @880nm Bandwidth (-3 db): 100 MHz Output Signal: ±1.0 V at 50 Ω load (for linear gain and low harmonic distortion), maximum ±2.0 V at 50 Ω load Conversion Gain (V/W): 10.8 x 10 3 or 32.4 x 10 3 (@ 850 nm switchable) Common Mode Rejection (dB): 50 Hardware & Interface Connectivity Power Requirement: ±15 V (±14.5 V … ±16.5 V) -90 / +120 mA Power Supply: Power Supply Required and Sold Separately: USA: #59-180 Europe: #59-180 Japan: Not Available Korea: Not Available China: #59-180 Environmental & Durability Factors Operating Temperature (°C): 0 to +60 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View ×