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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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Multistage single clad 2 μm TDFA with a shared L-band pump source
Applied Optics
|August 18, 2018
Summary
This study details the performance of a two-stage thulium-doped fiber amplifier (TDFA) using a shared L-band pump. Experimental and simulation results cover output power, gain, and noise figure across a wide wavelength range.
Area of Science:
- Optical Engineering
- Laser Physics
- Fiber Optics
Background:
- Thulium-doped fiber amplifiers (TDFAs) are crucial for optical communication systems.
- Wideband TDFAs are needed for advanced wavelength-division multiplexing.
- Shared pump sources offer efficiency advantages in fiber amplifier design.
Purpose of the Study:
- To experimentally evaluate and simulate a multiwatt, two-stage TDFA.
- To analyze amplifier performance metrics including output power, gain, noise figure, and dynamic range.
- To investigate the spectral performance across low-, mid-, and upper-wavelength regions.
Main Methods:
- Utilized an L-band (1567 nm) shared pump source for a two-stage TDFA configuration.
- Measured key performance parameters (Pout, G, NF) at specific signal wavelengths (1909, 1952, 2004 nm).
- Compared the performance of the two-stage TDFA against a one-stage configuration and validated experimental data with simulations.
Main Results:
- Demonstrated multiwatt output power from the two-stage TDFA.
- Characterized gain, noise figure, and dynamic range across the amplifier's operating spectrum.
- Observed spectral performance variations across the tested wavelengths, highlighting the amplifier's wideband capability.
Conclusions:
- The two-stage TDFA exhibits robust performance suitable for wideband applications.
- Shared pump architecture provides an efficient solution for high-power TDFA systems.
- Experimental and simulation results show good agreement, validating the amplifier model.
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