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Published on: May 27, 2013
Polarization dependent visible supercontinuum generation in the nanoweb fiber
Peiguang Yan1, Jie Shu, Shuangchen Ruan
1Shenzhen Key Laboratory of Laser Engineering, Shenzhen University, ShenZhen, 518060, China.
Optics Express
|March 30, 2011
Summary
Researchers created a novel nanoweb fiber producing tunable visible supercontinuum (SC) light. This polarization-dependent SC generation may enable new applications in substrate-integrated waveguide sensing.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Supercontinuum (SC) generation is crucial for various optical applications.
- Developing novel fiber structures is key to controlling SC properties.
Purpose of the Study:
- To fabricate and characterize a novel nanoweb fiber for visible SC generation.
- To investigate the polarization dependence of SC in the nanoweb fiber.
Main Methods:
- Fabrication of a nanoweb fiber with fused-silica membranes of varying thickness.
- Pumping a 0.55-μm-thick membrane with 200-fs laser pulses at 800 nm near the second-zero-dispersion wavelength.
- Recording and analyzing mode patterns at different incident pulse polarization angles.
Main Results:
- Demonstrated polarization-dependent visible SC generation.
- Achieved a broadband spectrum from approximately 350 nm to 950 nm for TM mode excitation.
- Detailed analysis of mode patterns at various polarization angles.
Conclusions:
- The novel nanoweb fiber enables tunable visible SC generation.
- The polarization-dependent SC properties are linked to the fiber's unique structure.
- Potential applications in substrate-integrated waveguide sensing exist.
