Optical frequency division & pulse synchronization using a photonic-crystal microcomb injected chip-scale mode-locked laser

Published

February 15, 2024

Author(s)

Chinmay Shirpurkar, Jizhao Zang, Ricardo Bustos-Ramirez, David Carlson, Travis Briles, Lawrence R. Trask, Srinivas V. Pericherla, Di Huang, Ashish Bhardwaj, Gloria E. Hoefler, Scott Papp, Peter J. Delfyett

Abstract

A mode-locked laser photonic integrated circuit with a repetition rate of 10 GHz is optically synchronized to a tantalabased photonic crystal resonator comb with a repetition rate of 200 GHz. The synchronization is achieved through regenerative harmonic injection locking using a coupled optoelectronic oscillator loop resulting in an optical frequency division factor of 20. The repetition rate of the photonic crystal resonator comb is stabilized and locked through electro-optic division. This stability is transferred to the mode-locked laser where we measure a fractional frequency instability of 8×10−11 at an averaging time of 10s for the repetition rate signal of the mode-locked laser. Furthermore, we also measure the near carrier phase noise of the pulse repetition rate and estimate the integrated rms timing jitter of the pulses to be 6 ps.

Citation

Journal of Lightwave Technology

Volume

42

Pub Type

Journals

Download Paper

https://doi.org/10.1109/JLT.2023.3304605

Local Download

Citation

Shirpurkar, C. , Zang, J. , Bustos-Ramirez, R. , Carlson, D. , Briles, T. , R. Trask, L. , V. Pericherla, S. , Huang, D. , Bhardwaj, A. , E. Hoefler, G. , Papp, S. and J. Delfyett, P. (2024), Optical frequency division & pulse synchronization using a photonic-crystal microcomb injected chip-scale mode-locked laser, Journal of Lightwave Technology, [online], https://doi.org/10.1109/JLT.2023.3304605, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=936228 (Accessed April 27, 2024)