We have realized a modified time-delay spectrometer based on a step-chirped fiber Bragg grating array. This method allows simultaneous spectral and temporal characterization of pulsed light sources in the nanosecond regime, which can also be applied to the investigation of single pulses. With a spectral resolution in the 100 pm range, pulse spectrograms are measured and exemplarily used to explore the emission behavior of a wavelength-stabilized laser diode directly modulated in the nanosecond range.
© 2013 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: November 21, 2012
Manuscript Accepted: January 4, 2013
Published: February 13, 2013
Tobias Tiess, Manfred Rothhardt, Matthias Jäger, and Hartmut Bartelt, "All-fiber time-delay spectrometer for simultaneous spectral and temporal laser pulse characterization in the nanosecond range," Appl. Opt. 52, 1161-1167 (2013)