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Published on: February 6, 2014
All-optical self-switching in optimized phase-shifted fiber Bragg grating
Irina V Kabakova1, Bill Corcoran, Jeremy A Bolger
1Centre for Ultrahigh-bandwidth Devices for Optical Systems, School of Physics, University of Sydney, New South Wales, Australia. kabakova@physics.usyd.edu.au
Optics Express
|April 1, 2009
Summary
We achieved all-optical self-switching using a fiber Bragg grating with a phase-jump, enhancing light intensity by 19 times. This resulted in a significant nonlinear change in transmission at high peak powers.
Area of Science:
- Nonlinear optics
- Optical communications
- Photonics
Background:
- All-optical signal processing offers high-speed communication potential.
- Fiber Bragg gratings (FBGs) are key components in optical systems.
- Nonlinear optical effects are crucial for advanced signal manipulation.
Purpose of the Study:
- To demonstrate all-optical self-switching.
- To investigate nonlinear transmission changes in an optimized FBG.
- To leverage phase-jump cavities for enhanced light intensity.
Main Methods:
- Experimental demonstration of pulse propagation through an FBG.
- Utilizing a pi phase-jump within the FBG to create a resonant cavity.
- Measuring nonlinear transmission changes at high peak powers (1.5 kW).
- Comparison with numerical simulations.
Main Results:
- Achieved all-optical self-switching.
- Observed an intensity enhancement factor of 19 due to the cavity effect.
- Recorded a 4.2 dB nonlinear change in transmission.
- Experimental data aligned with numerical simulations.
Conclusions:
- The optimized FBG with a pi phase-jump effectively enables all-optical self-switching.
- Significant nonlinear transmission changes are achievable, paving the way for novel optical devices.
- The results validate the potential of phase-jump FBGs for enhanced optical signal processing.
