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Programmable Correction of Fiber Bragg Grating Delay Ripple for RF Photonic Filtering
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- Authors
- Minhyup Song
- Issue Date
- 2016-06
- Citation
- IEEE Photonics Technology Letters, v.28, no.12, pp.1321-1324
- ISSN
- 1041-1135
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- We present the correction of chirped fiber Bragg grating (FBG) group delay ripple (GDR) for improved sidelobe suppression in a dispersion and optical frequency comb-based radio-frequency (RF) photonic filter. The measured GDR is directly compensated by programming the spectral phase of an optical line-by-line pulse shaper on an optical frequency comb. As a result, the degradation in the sidelobe suppression of the RF photonic filter response is reduced by ~ 10 dB. Compared with optical fiber-based dispersion, the much shorter length of the chirped FBG should substantially reduce the latency of dispersion-based RF photonic filters.
- KSP Keywords
- Fiber Bragg Grating(FBG), Group delay ripple(GDR), Optical frequency comb, Pulse shaper, RF photonic filters, Radio-frequency, Spectral phase, chirped FBG, fiber-based, line-by-line, optical fibers