The Keysight (Agilent) 83437A is a versatile incoherent broadband light source designed to work alongside an optical spectrum analyzer (OSA) for measuring insertion loss, crosstalk, bandwidth, and polarization dependencies of passive optical components. It can be customized with up to four edge-emitting LEDs (EELEDs) to provide high spectral power density across multiple wavelength bands.

Specifications

Physical

ParameterValue
Power SupplyPowered via mainframe slot
Operating Temperature0 °C to +55 °C
Module Slot Width1 slot

Optical Performance Specifications

ParameterValue
Source TypeEdge-emitting LED (EELED)
Number of EELEDsUp to 4 (built to order)
Available Wavelengths1200 nm, 1310 nm, 1550 nm, 1650 nm
Output Power at 1200 nm-17 dBm
Output Power at 1310 nm-13 dBm
Output Power at 1550 nm-13 dBm
Output Power at 1650 nm-17 dBm
Peak Power Density> 25 dB stronger than a white light source (in single-mode fiber)

Optical Interface & Connectivity

ParameterValue
Optical Fiber TypeSingle-mode
Optical Connector InterfaceAngled connector options available

Modulation & Control Features

ParameterValue
External Modulation Input PortSupported (on/off control)
External Modulation Frequency RangeUp to 100 kHz
Modulation Application SupportLock-in techniques or external control

System Integration & Remote Control

ParameterValue
Primary ApplicationsMeasurement of insertion loss, crosstalk, bandwidth, and polarization dependencies

Performance

ParameterValue
Power Stability (15 min)±0.02 dB (at constant temperature)
Power Stability (24 h)±0.05 dB (with temperature variation < ±1 °C)

General

ParameterValue
Warm-up Time1 hour

Optical Specifications

ParameterValue
Center Wavelength Tolerance±30 nm for all nominal wavelengths (1200 nm, 1310 nm, 1550 nm, 1650 nm)
Spectral Width (FWHM)≥ 50 nm (1200 nm), ≥ 60 nm (1310 nm), ≥ 70 nm (1550 nm), ≥ 80 nm (1650 nm)
Spectral Power Density≥ -37 dBm/nm (1200 nm), ≥ -33 dBm/nm (1310/1550 nm), ≥ -37 dBm/nm (1650 nm)

Modulation

ParameterValue
Internal Modulation Frequencies270 Hz, 350 Hz, 1 kHz, 2 kHz (selectable)

Compatibility & Configuration

ParameterValue
Available OptionsOption 001 (1310 nm), Option 002 (1550 nm), Option 003 (1310/1550 nm), Option 004 (1200/1310/1550/1650 nm), Option 005 (1200 nm), Option 006 (1650 nm)
Compatible MainframesAgilent / HP 8163A/B, 8164A/B, 8166A/B

Environmental

ParameterValue
Storage Temperature-40 °C to +70 °C
Humidity Range95% R.H. from 0 °C to 40 °C (non-condensing)

Technology

Edge-Emitting LED (EELED)

Applications

Fiber Optic Test Equipment