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Directly Generated Gaussian-Shaped Optical Frequency Comb for Microwave Photonic Filtering and Picosecond Pulse Generation

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4 Author(s)
Rui Wu ; Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA ; Long, C.M. ; Leaird, D.E. ; Weiner, A.M.

Using only electro-optic modulators, we generate a high-quality 41-line 10-GHz Gaussian-shaped optical frequency comb. We use this comb to demonstrate apodized microwave photonic filters with a 40-dB mainlobe-to-sidelobe suppression ratio without the need of a pulse shaper. Further, our Gaussian-shaped comb has an approximately quadratic phase, which allows for compression into a high-quality pulse train via propagation in single-mode fiber.

Published in:

Photonics Technology Letters, IEEE  (Volume:24 ,  Issue: 17 )