APEX Technologies OFDR-APX series is an Optical Frequency Domain Reflectometer with high resolution < 8 µm, a dynamic range of 110 dB and a measurement range of up to 350 m. The key component of our system is the excellent characteristic of the integrated TLS whose frequency is swept in time over a wide wavelength range and without mode hops. The interference between the test and reference signals is detected coherently and appears as peaks in the time domain using Fourier transform. This allows the measurement of reflection, transmission, return loss and polarization effects of fiber components and within photonic integrated circuits.

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