Oscilloscope Probes


Optical to Electrical Converter

    Optical to Electrical Converters

OE425 - Optical-to-Electrical Converter, 500-870 nm ProBus BNC Connector
OE455 - Optical-to-Electrical Converter, 950-1630 nm ProBus BNC Connector
OE525 - Optical-to-Electrical Converter, 500-870 nm ProLink BMA Connector
OE555 - Optical-to-Electrical Converter, 950-1630 nm ProLink BMA Connector
OE6250G-M - O-E converter, 25 GHz Bessel-Thomson response, 36 GHz flat response
OE695G - Optical to Electrical Converter
These wide- band multi-mode optical-to-electrical converters are designed for measuring optical communications signals. They connect to Teledyne LeCroy real-time oscilloscopes and provide capability for physical layer signal assessment using a variety of oscilloscope tools, such as SDAIII-CompleteLinQ Serial Data Eye, Jitter, Noise and Crosstalk Analysis, mask testing, serial triggering and decoding, and other compliance and debug tools. Maximum data rate test capability is >11.317 Gb/s with reference receiver, or 12.5 Gb/s without.
Key Features
  • Frequency range DC to 9.5 GHz (electrical, -3 dB)
  • Reference receiver support from 8GFC to 10GFC FEC, or Custom (<12.5 Gb/s)
  • 62.5/125 µm multi-mode or single-mode fiber input
  • Broad wavelength range (750 to 1650 nm)
  • +7 dBm (5 mW) max peak optical power
  • Low noise (as low as 25 pW/√Hz)

Reference Receiver Support

The OE695G contains built-in software reference receiver filters for common Fibre Channel, Ethernet, and ITU telecom standards

Broad Wavelength Range

Broad wavelength range (750 to 1650 nm and frequency range DC to 9.5 GHz (electrical, -3 dB)).



Optical Wavelength Range780 to 1550 nm (calibrated range)
750 to 1650 nm (usable range)
Maximum Modulation BandwidthDC to 8.625 GHz (-3 dBe, electrical)
DC to 11.64 GHz (-3 dBo, optical)
(Reference Receiver Applied)
DC to 9.5 GHz (-3 dBe)
DC to 12 GHz (-6 dBe)
DC to 17 GHz (-14 dBe)
(+/-1 dBe passband variations typical, no Reference Receiver Applied)
Reference Receiver Uncertainty±1.6 dBe up to Fref =0.75*bit rate
±4 dBe 2*bitrate setting (typical)
±0.85 dBe up to Fref =0.75*bit rate
±4 dBe 2*bit rate setting
(on matched oscilloscope input channel 4 with 11, 17, 20, 30, 39, 50, 75, 90, or 100 mV/div gain ranges) with purchase of OE695G-REFCAL)
Reference Receiver Settings8GFC, OC192/STM64, 10GBASE-W, 10GBASE-R, 10GFC, ITU-T G.975 FEC, ITU-T G.709 FEC, 10GbE FEC, 10GFC FEC, Custom (622 Mb/s to 12.5 Gb/s), None (Maximum Bandwidth)
Noise Equivalent Power25 pW/√Hz @ 1310 nm (typical)
50 pW/√Hz @ 850 nm (typical)
Average noise spectral density 0-10 GHz using most sensitive vertical scale
Rise Time (10-90%)33 ps (typical, no reference receiver applied)
Connector TypeFC/PC, compatible with 62.5/125 µm Multi-Mode fiber, or mechanically compatible Single-Mode fiber
Maximum Optical Linear Input (1 dB compression point)-2 dBm (typical), -3 dBm (minimum) at 1550/1310 nm
+4 dBm (typical), +3 dBm (minimum) at 850 nm
Maximum Optical Power+7 dBm (5 mW) Peak
Conversion Gain (typical)0.17 V/mW (785 nm)
0.21 V/mW (850 nm)
0.33 V/mW (1310 nm)
0.33 V/mW (1550 nm)
Optical Input Return Loss-30 dB (typical), -27 dB (maximum) for 1310/1550 nm, single-mode
-16 dB (typical), -14 dB (maximum) for 850 nm, multi-mode
Dark Calibration Accuracy1 µW (typical, depending on gain setting)
Dark Calibration Level Variation With Temperature-2 µW/ °C (typical)
Vertical Level Power Accuracy5% typical, 10% maximum at 780, 850, 1310, 1550 nm
Linearly interpolated gain at other values
Temperature (Operating)5°C to 40°C
Temperature (Non-Operating)-20°C to 60°C
Humidity (Operating)5% to 80% relative humidity (non-condensing) up to +31°C.
Upper limit derates to 50% relative humidity (non-condensing) at +40°C
Humidity (Non-Operating)5% to 95% relative humidity (non-condensing) as tested per MIL-PRF-28800F
Altitude (Operating)Up to 10,000 ft (3049 m) at or below +25°C
Random Vibration (Operating)0.5 grms 5 Hz to 500 Hz, 15 minutes in each of three orthogonal axes
Random Vibration (Non-Operating)2.4 grms 5 Hz to 500 Hz, 15 minutes in each of three orthogonal axes
Functional Shock20 gpeak, half sine, 11 ms pulse, 3 shocks (positive and negative) in each of three orthogonal axes, 18 shocks total