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Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
All-optical Brillouin dynamic grating generation in few-mode optical fiber
Shenping Li1, Ming-Jun Li, Richard S Vodhanel
1Science and Technology Division, Corning Incorporated, SP-AR-06-02, Corning, New York 14831, USA. lis2@corning.com
Optics Letters
|November 21, 2012
Summary
Researchers generated Brillouin dynamic gratings (BDGs) in few-mode optical fibers for the first time. This technique uses stimulated Brillouin scattering to create a moving acoustic grating for beam reflection in optical fibers.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Brillouin dynamic gratings (BDGs) are crucial for advanced optical signal processing.
- Few-mode optical fibers offer enhanced capacity for optical communications.
Purpose of the Study:
- To demonstrate the first-ever generation of BDGs in few-mode optical fibers.
- To explore the potential of BDGs for novel applications in optical communications and sensing.
Main Methods:
- Stimulated Brillouin scattering was employed to generate a moving acoustic grating.
- A writing beam in one fiber mode interacted with a reading beam in another mode.
- Single-end pumping configuration was utilized.
Main Results:
- Successful generation of BDGs in a specially designed two-mode optical fiber.
- Demonstrated tunable reflectance of up to 0.1% for the BDG.
- The experiment was conducted over a 15 km fiber length.
Conclusions:
- This work establishes a new capability for manipulating light in few-mode fibers using BDGs.
- The findings pave the way for developing new fiber-optic devices and systems.
- Further research can explore higher reflectance and different few-mode fiber configurations.
