  We study the quantum-droplet state in a 3-dimensional (3D) Bose gas in the
presence of 1D spin-orbit-coupling and Raman coupling, especially the stripe
phase with density modulation, by numerically computing the ground state energy
including the mean-field energy and Lee-HuangYang correction. In this droplet
state, the stripe can exist in a wider range of Raman coupling, compared with
the BEC-gas state. More intriguingly, both spin-orbit-coupling and Raman
coupling strengths can be used to tune the droplet density.
