A balanced photonic receiver is demonstrated to suppress photodiode-generated even-order nonlinearities in a photonic link. This result is especially important for multioctave analog applications. Experimental results are presented for a high-frequency (2–30 MHz) link exhibiting 33-dB suppression of the second harmonic, resulting in an output intercept point of 99 dBm due to second-order intermodulation distortion at 26-mA average photocurrent.
© 2008 IEEE
Alexander S. Hastings, Vincent J. Urick, Christopher Sunderman, John F. Diehl, Jason D. McKinney, David A. Tulchinsky, Preetpaul S. Devgan, and Keith J. Williams, "Suppression of Even-Order Photodiode Nonlinearities in Multioctave Photonic Links," J. Lightwave Technol. 26, 2557-2562 (2008)