Intensity Modulator


IML-1550-40 –  Low Vpi 1550 NM 40 GHz Intensity Modulator

The Optilab IML-1550-40 40 GHz Intensity Modulator is designed for analog modulation of up to 40 GHz for microwave links, antenna remoting, and RF over Fiber. It is a high linearity, low drive voltage lithium niobate Mach-Zehnder interferometer (MZI) design. The IML-1550-40 40 GHz Intensity Modulator is also ideally suited for digital communication up to 44 Gb/s.  It is a low-loss lithium modulator that proves to be extremely stable for long periods of time, and features excellent stability in a biased circuit, operating from 1525 nm to 1610 nm.

Main specifications

Operating Wavelength15251610nm
E-O bandwidth (-3 dB)30GHz
Vpi @ 10 GHz3V
Vpi @ 30 GHz4.5V
Insertion Loss4.55dB
40 GHz Intensity Modulator


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