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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 13 — Jun. 18, 2012
  • pp: 14009–14014

Tunable microwave photonic phase shifter based on slow and fast light effects in a tilted fiber Bragg grating

Hiva Shahoei and Jianping Yao  »View Author Affiliations

Optics Express, Vol. 20, Issue 13, pp. 14009-14014 (2012)

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A continuously tunable microwave phase shifter based on slow and fast light effects in a tilted fiber Bragg grating (TFBG) written in an erbium/ytterbium (Er/Yb) co-doped fiber is proposed and experimentally demonstrated. By optically pumping the TFBG, the magnitude and phase responses of the cladding mode resonances are changed, which is used to introduce a tunable phase shift to the optical carrier of a single-sideband modulated signal. The beating between the phase-shifted optical carrier and the sideband will generate a microwave signal with the phase shift from the optical carrier directly translated to the generated microwave signal. A tunable phase shifter with a tunable phase shift of 280° at a microwave frequency tunable from 24 to 36 GHz is experimentally demonstrated.

© 2012 OSA

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(350.4010) Other areas of optics : Microwaves
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 30, 2012
Revised Manuscript: May 26, 2012
Manuscript Accepted: May 30, 2012
Published: June 8, 2012

Hiva Shahoei and Jianping Yao, "Tunable microwave photonic phase shifter based on slow and fast light effects in a tilted fiber Bragg grating," Opt. Express 20, 14009-14014 (2012)

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