We demonstrate a novel method of generating a multiwavelength pulse train by use of time-lens compression. In addition to pulse compression, this time lens simultaneously displaces the pulses according to their center wavelengths, resulting in a temporally evenly spaced multiwavelength pulse train. We further demonstrate a new aberration-correction technique based on the temporal analog of a spatial correction lens to improve the quality of the compressed pulses. Through the use of cw distributed-feedback lasers and electro-optic phase modulators, the all-fiber system allows complete tunability of temporal spacing, spectral profile, and repetition rate.
© 2004 Optical Society of America
(060.4230) Fiber optics and optical communications : Multiplexing
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(200.4960) Optics in computing : Parallel processing
(320.7080) Ultrafast optics : Ultrafast devices
James van Howe, Jonas Hansryd, and Chris Xu, "Multiwavelength pulse generator using time-lens compression," Opt. Lett. 29, 1470-1472 (2004)