[13a-N404-1~7] CS.4 Code-sharing Session of 3.6 & 3.7 & 4.3

▼ [13a-N404-3] Phase locking of two-color Electro-optic frequency combs generated with common modulators for coherent synthesis

〇(D)Runmin Li¹, Haochen Tian¹, Takashi Kato¹, Akifumi Asahara¹, Kaoru Minoshima¹ (1.The Univ. of Electro-communications)

Keywords:electro-optic frequency comb, two-color, coherently synthesized

Benefit from the wide tunability and tens of GHz high repetition rate, electro-optic (EO) combs have shown great potential in many applications, like optical waveform synthesis, multiheterodyne optical detection, pulse-to-pulse interference-based distance measurement, etc. Typically, an EO comb is generated through modulating one CW laser with cascaded EO intensity modulators and EO phase modulators. In this work, we modulate two CW lasers at distinct wavelengths via common EO modulators, resulting in a two-color EO comb with high relative stability due to common RF noise suppression, which opens up application with great flexibility and controllability. Here the beat signal between two-color EO comb is detected and phase locked to a low noise radio frequency (RF) reference to achieve coherent synthesis.