GRIN Lens Coupled Top-Illuminated Highly Linear InGaAs Photodiodes

Abhay Joshi, Shubhashish Datta, Don Becker

IEEE Photonics Technology Letters · 2008 · 43 citations · 7 references

Concepts

Abstract

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> We report a graded index (GRIN) lens-coupled highly linear InGaAs photodiode with a third-order harmonic output intercept point of 54 dBm and an estimated third output intercept point of 49.2 dBm. Optical beam shaping through GRIN lens coupling enhances the third-order intercept by 8 dB as compared to single-mode fiber coupled photodiodes. </para>

References

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