Introducing a new class of “universal” amplifiers for test and measurement markets requiring low noise and high long-term stability. Ideal for interferometric applications. Available in a wide range of two-in-one or three-in-one combinations in the same chassis. Example: 22-dBm variable gain DWDM booster + 10-dBm variable gain pre-amp + 15-dBm flattened ASE source. RS-232, GPIB and Ethernet interfaces available.