This can be especially important in production environments with longer cable runs. Direct modulation of each channel's laser current is possible via a single, rear-panel modulation port. The modulation signal is ported through the backplane and can be enabled individually at each module. Modules are also available with reverse photodiode bias capabilities, especially important for telecom wavelength devices. High-Stability TEC Control Wavelength stability is assured with stable temperature specifications.
Temperature control is enhanced by the incorporation of novel design improvements.
All temperature control modules are equipped with a smart integrator control loop and an expanded gain setting range to optimize settling times for a particular application. These m odules also provide TEC voltage measurement and allow internal selection of thermistor current ranges. Unipolar Control Adapters are available for resistive heater applications. The front-panel interface maintains simple and intuitive instrument operation, yet adapts to the changing needs of production tests. The graphic display simultaneously monitors up to four channels.