The Electro Optical D2224SM with PD1403DSM is a photodiode receiver module integrating a dual-gain preamplifier for high-performance electro-optical signal detection and processing. This unit delivers direct voltage readout compatible with oscilloscopes and data acquisition systems, enabling precision measurements across visible and infrared wavelengths. The modular design supports multiple photodiode active diameters and packaging options, accommodating both single-mode and multimode fiber coupling alongside free-space optical inputs.
## Technical Specifications
**Optical Performance**
• Wavelength range: 360 nm to 1100 nm with peak response near 970 nm
• InGaAs variants: 900 nm to 1700 nm
• Active diameter options: 3 mm, 70 µm, and 120 µm
• Selectable optical elements: neutral density filters, bandpass filters, AR-coated lenses and windows
**Electrical Characteristics**
• Dual-gain preamplifier circuitry
• Output: direct voltage readout via BNC connectors
• Photodiode capacitance, dark current, and rise/fall time vary with active diameter and operating conditions
• Shunt resistance suitable for high sensitivity applications
• Noise equivalent power (NEP) specified per photodiode configuration
**Mechanical & Interface**
• TO-5 package with broadband double-sided AR-coated window (3 mm photodiodes)
• TO-46 packages (70 µm and 120 µm photodiodes)
• Two 3-inch leads soldered to anode and cathode
• BNC connectors standard
• Fiber coupling: lensed caps for single-mode and multimode fiber; actively aligned FC receptacles for 70 µm and 120 µm variants
## Key Features
• Integrated dual-gain preamplifier eliminates external amplification in many applications
• Multiple active diameter options optimize sensitivity and speed trade-offs
• Fiber and free-space coupling configurations support flexible optical interfaces
• Custom arrays and calibrated spectral response available
## Typical Applications
Spectroscopy, camera triggering, laboratory experimentation, and industrial OEM integration requiring precision optical detection and signal conditioning.
## Compatibility & Integration
Direct integration into sophisticated systems demanding precision measurement. Output voltage format enables connection to standard oscilloscopes and DAQ platforms without signal conditioning.
