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Phase sensitive parametric fiber amplifier for the 2 μm wavelength range.
Optics Express
|September 15, 2015
Summary
This study demonstrates a tunable parametric fiber amplifier operating near 2 μm, achieving significant phase-sensitive gain. The device
Area of Science:
- Nonlinear Optics
- Fiber Optics
- Laser Technology
Background:
- Parametric fiber amplifiers are crucial for generating tunable light sources.
- Phase-sensitive amplification offers unique advantages in signal processing and measurement.
- Operation in the 2 μm region is relevant for various applications, including spectroscopy and telecommunications.
Purpose of the Study:
- To demonstrate a widely tunable phase-sensitive parametric fiber amplifier.
- To investigate its performance in the 2 μm wavelength region.
- To characterize its gain, bandwidth, and tunability.
Main Methods:
- A three-fiber-stage configuration was employed for the parametric amplifier.
- Phase-sensitive gain was measured by determining conversion efficiency.
- A pulsed pump and a signal at 1.281 μm were used for characterization.
Main Results:
- Phase-sensitive gain levels of up to 30 dB were achieved.
- A gain variation of 20 dB was observed.
- The amplifier operated across a wide wavelength range from 1952 nm to 2098 nm.
- A tunable bandwidth of approximately 0.1 nm was demonstrated, controllable via fiber properties.
Conclusions:
- The demonstrated amplifier offers a widely tunable and phase-sensitive gain in the 2 μm region.
- The device's performance is influenced by fiber lengths and dispersion.
- This technology holds potential for applications requiring precise wavelength control and high gain.
