BaySpec Inc. has introduced WaveCapture, a fiber Bragg grating (FBG) interrogation analyzer with an integrated reference source. The spectral engine simultaneously covers multiple wavelengths for precise and rapid FBG sensor system measurements. Response time is up to ~5 kHz, and absolute wavelength accuracy is ±15 pm. The device can be made for the O-, S-, C- or L-band wavelength ranges. As an input, it uses a tapped signal from the main data transmission link through a single-mode fiber, then collimates it with a microlens. Control electronics read out the processed digital signal to extract required information.