Calculation of the Phase Noise at Comb-Line Frequencies in a Frequency Comb

Abstract

We calculate the phase noise in a modified uni-traveling carrier photodetector for frequency comb applications. In contrast to a continuous wave, a frequency comb is characterized by a distinct phase noise for each comb line.

Optimized MUTC Photodetector for Lower Phase Noise at Comb-Line Frequencies Below 40 GHz

“…Li et al [2] designed and studied an MUTC photodetector that was later analyzed by Mahabadi et al [3]. Recently we have extended the work of [3] by calculating the phase noise at the first 100 comb-line frequencies in this detector [4]. We found that the phase noise increases non-monotonically as a function of comb-line frequencies.…”