Stable Scanning of Dressing Fields on Multiwave Mixing in Optical Ring Cavity

Abstract

We investigate a novel detection technique to study the coherent control of dressed multiwave mixing (MWM) process. A stable laser dressing field with a wavelength of 480 nm is realized via the second harmonic generation technique. By scanning such dressing field, stable Rydberg MWM signals with high signal-to-noise ratio are observed. With the MWM signals oscillated in a stabilized three-mirror cavity and cavity dressing field scanned, dressed MWM cavity modes are obtained. Thanks to the stable 480 nm and cavity dressing fields, the longterm drift of dressed MWM in cavity can be dramatically reduced to <4 MHz from 100 MHz.

Locking bandwidth of two laterally-coupled semiconductor lasers subject to optical injection

“…Stable locking behavior is a generic property in many coupled systems 22 – 26 , and lateral laser arrays are no exception 12 , 17 – 19 . Previous bifurcation analyses have shown that stable locking regions can be found in two- and three-element laser arrays and depend strongly on the degree of amplitude-phase coupling of the lasing field that is characterized by the linewidth enhancement factor 12 , 18 , 27 .…”

Comparison between optical bistabilities versus power and frequency in a composite cavity-atom system

“…A long stroke PZT is mounted on the back of M1 to adjust and control the cavity length. Also, the feedback electronic signal for holding the cavity length is also added onto the cavity through the PZT [18]. The 7cm long atomic vapor cell (placed between M2 and M3) is wrapped with μ-metal sheets and heated by a heater tape to set the temperature of the cell as 60°C to provide an atomic density of 2.5 × 10 11 cm −3 .…”