Title :
Directly Generated Gaussian-Shaped Optical Frequency Comb for Microwave Photonic Filtering and Picosecond Pulse Generation
Author :
Wu, Rui ; Long, Christopher M. ; Leaird, Daniel E. ; Weiner, Andrew M.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
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.
Keywords :
electro-optical modulation; microwave filters; microwave photonics; optical fibre filters; optical pulse compression; optical pulse generation; apodized microwave photonic filters; compression; directly generated high-quality Gaussian-shaped optical frequency comb; electro-optic modulators; frequency 10 GHz; high-quality pulse train; mainlobe-to-sidelobe suppression ratio; picosecond pulse generation; pulse propagation; quadratic phase; single-mode fiber; Microwave filters; Optical fiber filters; Optical fibers; Optical pulse shaping; Radio frequency; Filters; microwave photonics; optical signal processing; phase modulation; short pulse generation;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2205673
