Raman fiber amplifier with integrated cooler
Galina Nemova, Raman Kashyap
TL;DR
This paper introduces a novel Raman fiber amplifier design that integrates laser cooling via ytterbium ions to counteract heat, enabling potentially athermal operation of the device.
Contribution
The work presents a new scheme combining Raman amplification with laser cooling in a single fiber, enhancing thermal management in optical amplifiers.
Findings
Demonstrates laser cooling in a Raman fiber amplifier
Achieves potential athermal operation through Yb3+ ion distribution
Proposes dual-pump scheme for amplification and cooling
Abstract
We present a new scheme for a laser cooled Raman optical fiber amplifier. The heat generated in the process of stimulated Raman scattering is compensated for with laser cooling provided by anti-Stokes fluorescence of ytterbium ions doped in the core of the fiber. The device is pumped with two pump sources. One of the pump sources provides Raman amplification of the signal and does not interact with the ytterbium ions in the core of the fiber. The second pump provides laser cooling of the fiber with anti-Stokes fluorescence of the Yb3+ ions. The proper arrangement of Yb3+distribution can provide athermal performance of the device.
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