The Optical Zonu Integrated Fixed Delay Line is a standalone flange mount assembly that can implement delays of RF signals up to 110 μsec. Delays are proportional to the fiber length within the delay spool. The RF frequency band to be delayed is customizable and based upon Optical Zonu fiber transport modules within the range 10 kHz to 50 GHz.

Each configuration of the fixed delay module is designed for high spurious free dynamic range (SFDR). The fiber transmitter within the delay module is designed around a high power linear isolated cooled DFB laser diode. Fiber receivers within the delay module feature high performance InGaAs photodiodes. The standard RF interface is 50 Ohm SMA, however K or V connectors may be required for the highest RF frequencies.

LEDs on the module front panel provide status of the laser diode and photodiode. Open collector alarms and monitors are available on the DB9 connector. Optional I2C communication may be enabled to integrate the delay line into Optical Zonu’s Managed RFoF management system. The module is powered from +12 VDC.