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Watt-level L band superfluorescent fiber source.
Optics Express
|June 5, 2009
Summary
A high-power L band superfluorescent fiber source (SFS) was developed, achieving 0.94W output power and 21% optical conversion efficiency. This broad spectrum source utilizes an amplified spontaneous emission seed and a double-pass fiber amplifier.
Area of Science:
- Optoelectronics
- Fiber Optics
- Lasers
Background:
- Superfluorescent fiber sources (SFS) are crucial for various applications requiring broadband light.
- High-power L-band sources are particularly important for telecommunications and sensing.
Purpose of the Study:
- To develop and characterize a high-power L-band superfluorescent fiber source (SFS).
Main Methods:
- Constructed an L-band SFS using a low-power amplified spontaneous emission (ASE) seed source.
- Employed a high-power erbium-ytterbium co-doped fiber (EYDF) amplifier in a double-pass forward pumping configuration.
- Utilized a 976nm pump laser.
Main Results:
- Achieved an output power of 0.94W with 4.4W of pump power.
- Obtained an optical conversion efficiency of approximately 21%.
- Demonstrated a broad spectral coverage from 1560nm to 1615nm.
Conclusions:
- The developed high-power L-band SFS demonstrates efficient optical conversion and broad spectral bandwidth.
- The double-pass forward pumping configuration effectively amplifies the ASE seed to achieve high output power.
- This SFS is suitable for applications requiring high-power, broadband L-band light sources.
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