Response of the Model 1421 to a 125-mV, 50-ps, positive step-function input. Response of the Model 1422 to a 125-mV, 50-ps, positive step-function input.
Frequency response of the Model 1421 / 1422amplifiers.Boost fast signals
Flat response in both amplitude and phase
Easy to use, easy to cascade, compact
In some cases, amplifying your photodetector’s output is essential—especially when you’re using low-sensitivity instruments such as spectrum analyzers, frequency counters, or oscilloscopes. That’s why we designed these high-performance traveling-wave amplifiers (TWAs) to boost the signals from our high-speed photodetectors. They can also be used as general-purpose microwave amplifiers.
The double-shielded cases are designed to connect directly to our photodetector modules, reducing standing-wave effects and RF pick-up at the input. The 8.5-dB-gain Model 1421inverts your signal, while the 18-dB-gain Model 1422 does not. The standard version comes with a low-frequency cutoff of 50 MHz. Specify the “-LF” option for a low-frequency cutoff of 14 MHz. Power cables are provided.
We strongly recommend our Model 0901 power supply for use with these amplifiers.
Response of the Model 1421 to a 125-mV, 50-ps, positive step-function input. Response of the Model 1422 to a 125-mV, 50-ps, positive step-function input.Frequency response of the Model 1421 / 1422amplifiers.