Agilent / HP / Keysight 83437A

This broadband light source is based on Agilent Technologies' edge emitting LED (EELED) technology.

An EELED provides significantly more power density into a single mode fiber than a regular LED and more than one hundred times that of a white light source.

Connectors on the back panel allow you to modulate the light by applying a TTL compatible signal, or to selectively turn any of the EELEDs on (open connection) or off (shorted).

In configurations with multiple EELEDs installed, optical couplers combine the light to a single output.

In order to minimize coupler losses, this unit uses wavelength dependent and wavelength independent couplers depending on the ordered configuration.

Furthermore, an optional isolator and angled contact output connector help to increase the instrument's return loss for applications sensitive to reflections in the test setup.