20/40GHz Fiber Optical Transmitter/Converter

SKU: GHTM

The GHTM series of Fiber Optical Transmitters or Electrical-to-Optical Converters generate high-fidelity analog optical signals from electrical inputs, operating over a range from 10 MHz to 20 or 40 GHz. These high-performance, turnkey modules integrate a thin-film low Vπ lithium niobate modulator, reducing the RF input signal power requirement. The modulator is stabilized by a fully automatic bias controller to maintain optimal performance without drifts caused by environmental temperature changes or prolonged operation. Additionally, the system includes a tunable or fixed-wavelength DFB laser source, a variable optical attenuator, and power monitors for fully automated output power control and stabilization. The tunable laser can scan over the ITU 50 GHz grid with fine tuning of ±30 GHz in 1 MHz increments via a USB-connected GUI, while the fixed-wavelength laser is adjustable within a few nm through a manual tuning pot. The module can also integrate an external laser source, making it compatible with polarization-maintaining devices like tunable lasers or narrow-linewidth lasers, providing versatility for OEM system integration. The GHTM operates on a single ±5 Volt DC power supply which is provided. The GHTM is designed for RF-over-Fiber applications, as well as testing and characterizing optical-to-electrical (O-E) devices.