Let us say that we wish to achieve parametric amplification with signal at 1200 nm and pump at 800 nm travelling along t

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Let Us Say That We Wish To Achieve Parametric Amplification With Signal At 1200 Nm And Pump At 800 Nm Travelling Along T 1 (29.84 KiB) Viewed 22 times

Let us say that we wish to achieve parametric amplification with signal at 1200 nm and pump at 800 nm travelling along the same direction and the idler travelling in the reverse direction. If the refractive indices at pump, signal and idler wavelengths are 2.17, 2.15 and 2.11 respectively, calculate the grating period required in um for first- order QPM. [Hint: Ak = kp - ks + ki] Wp Wę x(2) Wi Parametric amplifier