Terahertz Generation in an Electrically Biased Optical Fiber: A Theoretical Investigation

<table>The power ratio between the power at arm <svg height="10.7375" id="M89" style="vertical-align:-0.13794pt" version="1.1" viewbox="0 0 7.4749999 10.7375" width="7.4749999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.7375)">
<g transform="translate(72,-63.41)">
<text transform="matrix(1,0,0,-1,-71.95,63.6)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑏</tspan>
</text>
</g>
</g>
</svg> and arm <svg height="7.1750002" id="M90" style="vertical-align:-0.1254pt" version="1.1" viewbox="0 0 7.9749999 7.1750002" width="7.9749999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,7.175)">
<g transform="translate(72,-66.26)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑎</tspan>
</text>
</g>
</g>
</svg> of the polarization coupler for the optical carrier <svg height="14.475" id="M91" style="vertical-align:-3.13504pt" version="1.1" viewbox="0 0 14.8875 14.475" width="14.8875" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.475)">
<g transform="translate(72,-60.42)">
<text transform="matrix(1,0,0,-1,-71.95,63.6)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑓</tspan>
</text>
<text transform="matrix(1,0,0,-1,-65.01,60.47)">
<tspan style="font-size: 8.75px; " x="0" y="0">1</tspan>
</text>
</g>
</g>
</svg>. Here, the power ratio is calculated as a function of the parameter <svg height="14.325" id="M92" style="vertical-align:-3.20526pt" version="1.1" viewbox="0 0 28.8125 14.325" width="28.8125" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.325)">
<g transform="translate(72,-60.54)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑅</tspan>
<tspan style="font-size: 12.50px; " x="9.2522202" y="0">𝐿</tspan>
</text>
<text transform="matrix(1,0,0,-1,-53.85,60.66)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑛</tspan>
</text>
</g>
</g>
</svg>.</table>

International Journal of Optics

fig4

Figure 4

Figure 4: Terahertz Generation in an Electrically Biased Optical Fiber: A Theoretical Investigation 