▎ 摘　　要

NOVELTY - The device has a first mirror (10), a first-half-wave plate (11) and a second mirror (12) located on a parallel straight optical path. A laser input unit is provided with a first laser (1) and a second half-wave plate (2). A first polarization beam splitting cube (3), a chopper (4), a second polarization beam splitting cube (5), a third half wave plate (6), a focusing lens (7) and a third polarization beam splitting cube (8) and a pump optical unit are together to generate pump laser beam transmitted in first direction. The first polarization beam splitting cube, the first mirror, the first-half-wave plate, the second mirror and a four-polarization light splitting cube (13) forms a detection light path unit. A graphene nonlinear optical unit (9) is located between the third polarization beam splitting cube and a fourth polarization beam splitting cube (13). USE - Graphene and cross phase modulation synergistic effect based space double-phase all-optical switch device. ADVANTAGE - The device realizes in-phase and out-of-phase modulation of the detection signal light by adjusting the pump power, and achieves the purpose of spatial two-phase all-optical switching. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a graphene and cross phase modulation synergistic effect based space double-phase all-optical switch modulation method. DESCRIPTION OF DRAWING(S) - The drawing shows a circuit diagram of a graphene and cross phase modulation synergistic effect based space double-phase all-optical switch device.