LeCroy OE695G Optical to Electrical Converter

The LeCroy OE695G is a optical-to-electrical converter that transforms optical signals across a broad wavelength range into electrical signals suitable for oscilloscope analysis. It delivers precise signal conversion with exceptional noise performance, enabling detailed examination of optical data streams from 622 Mb/s to 12.5 Gb/s. The OE695G integrates directly with Teledyne LeCroy oscilloscopes to provide advanced optical signal integrity analysis, reference receiver filtering for industry standards, and comprehensive troubleshooting capabilities for telecommunications, datacom, and optical measurement applications.

Technical Specifications

• Bandwidth: DC to 9.5 GHz at -3 dB (full bandwidth mode); rise time approximately 45 ps (10–90%)


• Wavelength Range: 750 nm to 1650 nm (calibrated range 780 nm to 1550 nm)


• Data Rate Support: 622 Mb/s to 12.5 Gb/s


• Maximum Optical Input Power: +7 dBm (5 mW peak)


• Noise Performance: As low as 25 pW/√Hz; Noise Equivalent Power up to 50 pW/√Hz


• Vertical Level Power Accuracy: 5% typical, 10% maximum at 785, 850, 1310, and 1550 nm


• Dark Calibration Accuracy: 1 µW typical; temperature drift -2 µW/°C typical


• Optical Return Loss: Typically -30 dB (1310/1550 nm single-mode); -14 dB (850 nm multi-mode)

Key Features

• Built-in software reference receiver filters for Fiber Channel, Ethernet, and ITU telecom standards


• Custom reference receiver support for any bit rate up to 12.5 Gb/s


• 4-pole Bessel Thomson low-pass filter response with ±1.6 dBe combined passband ripple (typical)


• Optional OE695G-REFCAL calibration for ±0.85 dB maximum passband response guarantee


• 62.5/125 µm multi-mode optical input connector

Compatibility & Integration

• Requires Teledyne LeCroy oscilloscope firmware version 6.9.0.0 or later


• Recommended oscilloscope bandwidth: ≥20 GHz