JDS Uniphase 320A-33ST

The JDS Uniphase 320A-33ST is a high-performance optical-to-electrical receiver that converts optical signals into electrical signals for transmitter waveform analysis, error rate testing, and optical eye pattern examination. Built around an InGaAs avalanche photodiode detector, this unit handles high-speed, low-level optical signals from single-mode fiber with exceptional sensitivity and fidelity.

## Technical Specifications

• **Bandwidth:** DC to 2.5 GHz minimum; 3.0 GHz typical
• **Optical Wavelength Range:** 1100 nm to 1600 nm, optimized for 1550 nm operation
• **Detector Type:** InGaAs APD
• **Fiber Interface:** 9/125 µm single-mode fiber with diamond universal screw-on adapter
• **Input Optical Return Loss:** 30 dB minimum at 1310/1550 nm
• **Maximum Conversion Gain:** 2000 V/W minimum; 2500 V/W typical
• **Minimum Detectable Signal:** 100 nW (-40 dBm)
• **High Power Optical Input:** 1.0 mW (0 dBm) maximum
• **Low Power Optical Input:** 200 µW (-7 dBm) maximum
• **High-Level Input Port:** Accepts laser sources up to +3 dBm without overload
• **Detector Output:** DC coupled, automatically nulled to <±100 µV DC
• **Integrated Limiting Amplifier:** 3 Gb/s
• **Input Voltage:** 100 to 240 VAC, 50 to 60 Hz
• **Power Consumption:** 25 W maximum
• **Electrical Output Connectors:** Female SMA
• **Dimensions:** 10.13" W × 4.54" H × 10.39" D (25.7 cm × 11.5 cm × 26.4 cm)
• **Weight:** 6 lbs (2.7 kg) excluding packaging

## Key Features

• Analyzes signals up to 2.5 Gb/s with effective performance down to below -30 dBm
• Dual-range optical inputs accommodate both high-power direct laser injection and low-power fiber-coupled signals
• Automatic DC offset nulling eliminates baseline drift when optical input is absent
• Wide wavelength acceptance enables multi-band telecommunications testing

## Typical Applications

• Transmitter waveform analysis and characterization
• Bit error rate (BER) testing
• Optical eye diagram measurement
• Single-mode fiber signal assessment

## Compatibility & Integration

Operates across 10°C to 40°C ambient conditions. Storage rated to -20°C to 70°C. Accepts standard single-mode fiber connections and outputs electrical signals via SMA connectors for integration with oscilloscopes and error rate analyzers.