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High spectral power density supercontinuum generation in a nonlinear fiber amplifier
Optics Express
|June 24, 2009
Summary
This study demonstrates supercontinuum generation using a nonlinear fiber amplifier, achieving a broad 750-nm spectrum with high spectral power density. The method combines signal amplification and spectral broadening within the fiber for tunable output.
Area of Science:
- Optics and Photonics
- Nonlinear Optics
- Fiber Optics
Background:
- Supercontinuum generation is crucial for various applications, requiring efficient and high-power sources.
- Traditional methods often involve complex setups or specialized fibers.
- Developing compact and high-performance supercontinuum sources remains an active research area.
Purpose of the Study:
- To investigate supercontinuum generation in a commercial nonlinear fiber amplifier.
- To achieve high spectral power density over a broad wavelength range.
- To explore the tunability of the generated spectrum based on amplifier gain.
Main Methods:
- Utilizing a commercial nonlinear fiber amplifier.
- Simultaneously amplifying a pulsed seed signal at 1.06 micrometers.
- Leveraging peak-power-induced spectral broadening during pulse propagation within the fiber.
Main Results:
- Achieved a 750-nm spectral broadening from 1 micrometer to 1.75 micrometers.
- Demonstrated tunable spectral power density controlled by the amplifier's gain level.
- Exceeded spectral power densities of 3 mW/nm.
Conclusions:
- The commercial nonlinear fiber amplifier enables efficient supercontinuum generation.
- The combined amplification and broadening approach offers a compact and tunable solution.
- High spectral power density supercontinuums are achievable with this method.
