Characterization of phase-shifted Brillouin dynamic gratings in a polarization maintaining fiber

Dengwang Zhou; Yongkang Dong; Pengbai Xu; Lei Teng; Hongying Zhang; Zhiwei Lu

doi:10.1117/12.2247000

4 November 2016 Characterization of phase-shifted Brillouin dynamic gratings in a polarization maintaining fiber

Dengwang Zhou, Yongkang Dong, Pengbai Xu, Lei Teng, Hongying Zhang, Zhiwei Lu

Proceedings Volume 10026, Real-time Photonic Measurements, Data Management, and Processing II; 100260X (2016) https://doi.org/10.1117/12.2247000
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

We numerically calculate and experimentally investigate the characterization of phase-shifted Brillouin dynamic gratings (PS-BDGs) in a polarization maintaining fiber (PMF). A phase-shifted point is induced into the middle of a conventional BDG through phase-modulating one of the two pump pulse, generating a PS-BDG thanks to the stimulated Brillouin scattering (SBS). When the frequency difference between a high frequency pump1 pulse with 1ns and π-1ns and a low frequency pump2 pulse with 100ps is equal to the Brillouin frequency shift of the PMF, a transient PS-BDG with a 3dBbandwidth of 354MHz of the notch spectrum is simulated based on the coupled-wave equations of BDG. By increasing the repetition rate up to 250MHz, an enhanced PS-BDG with a deep notch depth is obtained since the residual acoustic wave of the former SBS process is enhanced by the optical waves of the latter SBS process. Then a proof-of-concept experiment is built to verify the transient PS-BDG and the results show that the notch feature is consistent with the simulation results and the notch frequency of the PS-BDG can be changed by tuning the phase shift Δϕ . The proposed PS-BDGs have important potential applications in optical fiber sensing, microwave photonics, all-optical signal processing and RoF (radio-over-fiber) networks.

Citation Download Citation

Dengwang Zhou, Yongkang Dong, Pengbai Xu, Lei Teng, Hongying Zhang, and Zhiwei Lu "Characterization of phase-shifted Brillouin dynamic gratings in a polarization maintaining fiber", Proc. SPIE 10026, Real-time Photonic Measurements, Data Management, and Processing II, 100260X (4 November 2016); https://doi.org/10.1117/12.2247000

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available