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In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
Published on: May 27, 2013
Multicore, tapered optical fiber for nonlinear pulse reshaping and saturable absorption
Thomas F S Büttner1, Darren D Hudson, Eric C Mägi
1Centre for Ultrahigh-bandwidth Devices for Optical Systems, Institute of Photonics and Optical Science, School of Physics, The University of Sydney, NSW 2006, Australia.
Optics Letters
|June 30, 2012
Summary
Researchers developed a novel fiber-based waveguide array exhibiting unique physics like discrete diffraction. This device also shows potential as a saturable absorber with significant pulse reshaping capabilities.
Area of Science:
- Photonics
- Nonlinear Optics
- Fiber Optics
Background:
- Coupled waveguide arrays are crucial for studying nonlinear optical phenomena.
- Fabricating such arrays often involves complex lithographic techniques.
- Developing novel, integrated platforms for waveguide arrays is an active research area.
Purpose of the Study:
- To introduce a new method for creating coupled waveguide arrays using a tapered seven-core telecommunications fiber.
- To demonstrate the unique physics of discrete diffraction and discrete self-focusing in this fiber-based system.
- To characterize the device's performance as a saturable absorber and its pulse reshaping capabilities.
Main Methods:
- Tapering a seven-core telecommunications fiber to create a coupled waveguide array.
- Experimental observation of discrete diffraction and discrete self-focusing.
- Characterization of saturable absorber properties.
- Autocorrelation measurements for pulse analysis.
Main Results:
- Successful fabrication of a fiber-based coupled waveguide array.
- Demonstration of discrete diffraction and discrete self-focusing phenomena.
- Characterization of saturable absorber behavior.
- Observation of significant single-pass pulse reshaping.
Conclusions:
- The tapered seven-core fiber provides a novel and accessible platform for coupled waveguide array physics.
- The demonstrated nonlinear optical effects highlight the potential of this integrated device.
- The device shows promise for applications requiring saturable absorption and pulse manipulation.
