The OZ16xx is a broadband RF over Fiber standalone flange mount module which may be configured as a transmitter, a receiver, or a transceiver (transmitter + receiver). Fiber links may be configured for unidirectional or bidirectional RF traffic. The OZ16xx has a wide dynamic range and supports RF transport in situations where transport distance or flexibility of cabling may prohibit the use of coaxial cable. Packaged in a rugged dust-tight cast metal housing, the OZ16xx provides high Spurious Free Dynamic Range (SFDR) transport for RF signals in the frequency range 30 MHz up to 10 GHz. Optional extended bandwidths of 10 kHz (for lower rolloff) are also available. Manual Gain Control is available to adjust end-to-end RF link gain and to optimize the receiver output RF level.

The OZ16xx features a linear optically isolated cooled DFB laser diode operating at 1310 nm or 1550 nm and/or a high performance InGaAs photodiode. DWDM wavelengths are also available. Integrated WDMs within the module package allow for bidirectional signal traffic over a single fiber. The cooled laser diode is designed with a built-in Thermoelectric Cooler (TEC) which maintains the laser device at a constant temperature, over the ambient operating temperature range. By maintaining a constant laser diode temperature, laser noise is minimized and RF performance is maintained over the operating temperature range. The transmitter optical output power is also maintained at a constant level by means of closed loop control.

The OZ16xx module RF interface is 50Ω SMA. The standard optical interface is SC/ APC bulkhead receptacle (FC/APC is also an option). The OZ16xx is designed for transport over 9/125 μm single mode fiber, however options exist for transporting over multimode fiber. Alarm and monitoring functions are available via a DB9 connector on the enclosure. LEDs provide status of laser bias current (transmitter) and received optical power (receiver). An optional I2C serial data interface is also an option, contact Optical Zonu for details. The OZ16xx module is powered from +12 VDC.

Inline digital attenuators enable both transmitter and receiver RF gain control. Both Manual Gain adjust (MGC) and closed loop Automatic Gain Control (AGC) are supported in the fiber transmitters and receivers. MGC and AGC modes enable optimization of spurious free dynamic range (SFDR), noise figure, linearity (P1dB and IIP3), and RF gain over a wide variety of optical loss budgets and RF signal levels. Built-in RF shielding supports low EMI/RF interference.

Transmitters feature linear uncooled isolated DFB laser diodes. CWDM wavelengths are available. Average Automatic Power Control (AAPC) provides closed loop control of the transmitter optical output power over the full operating temperature range. Receivers feature high performance InGaAs photodiodes. The standard transport RF frequency band is 30 – 3,000 MHz. Options exist for extending the frequency range to 1 MHz on the lower end and 6 GHz on the higher end. The RF interface is 50Ω SMA. SC/APC optical fiber pigtails are standard to maintain low optical reflections throughout the fiber plant. Contact Optical Zonu for other options. Standard transport is over 9/125 μm single mode fiber, however Multimode fiber transport is also an option (contact Optical Zonu for details).

The OZ20x module power and digital interface is provided on an industry standard USB-C connector. Monitoring and control are via a USB, I2C, or UART physical interface. LEDs provide local status of fiber transmitter and receiver. OZ20x modules are powered from 6.5 VDC.

OZ20x transmitter and receiver modules may be integrated into 19” rack mounted architectures to provide very dense RF over fiber transport. Up to 64 transmitter and/or receiver modules can be fit into a 19” 3RU J3U Chassis by utilizing the J3U plug-in modules. (see the J3U Quad Transport Datasheet). RF links may also be optimized for transporting low phase noise reference clocks in the frequency range 10 – 200 MHz.