Noise floors of subnanosecond transient recording systems.

摘要

We compare the laser diode relative intensity noise, the detector shot noise and the amplification system noise for three different approaches to highbandwidth transient recording. The first approach is a 1300nm direct modulation oscilloscope based link. The second approach is an 810nm indirect modulation streak camera based system. The third approach is an attempt to provide the 1300nm direct modulation link with multichannel streak camera capability by replacing the oscilloscope with a second 810nm laser diode and a streak camera. By comparing the noise floors of these systems we can identify the system trade-offs in dynamic range, bandwidth and number of channels. 1 fig., 1 tab.