Summary
International Symposium on Nonlinear Theory and Its Applications
2015
Session Number:A3L-C
Session:
Number:A3L-C-2
Highly Stable and Broadly Tunable Photonic Microwave Generation Using Period-One Nonlinear Dynamics of Semiconductor Lasers
Sheng-Kwang Hwang, Yu-Han Hung,
pp.153-156
Publication Date:2015/12/1
Online ISSN:2188-5079
Summary:
Period-one nonlinear dynamics in a semiconductor laser subject to external injection of a highly correlated optical comb are investigated for photonic microwave generation. The optical carrier of the optical comb excites the period-one dynamics, giving rise to broadly and continuously tunable microwave generation with constant power from a few to tens or even hundreds of gigahertz. A harmonic of the optical comb phase-locks the lower oscillation sideband of the period-one dynamics, leading to stabilization of such generated microwaves, down to a 3-dB linewidth of 1 Hz. By taking advantage of frequency multiplication in yielding the optical comb, only an electronic microwave reference at a small fraction, such as one-tens, of the generated microwave frequency is required to achieve stabilization.