Quantum States of Higher-order Whispering gallery modes in a Silicon Micro-disk Resonator
2020
The quantum states of light in an integrated photonics platform
provide an important resource for quantum information processing and take
advantage of the scalability and practicality of silicon photonics.
Integrated resonators have been well explored in classical and quantum
optics. However, to encode multiple information through integrated quantum
optics requires broader utilization of the available degrees of freedom on
a chip. Here, we studied the quantum interference between photon pairs of
the same higher-order whispering gallery modes populated by spontaneous
four-wave mixing in an integrated silicon micro-disk resonator. The
quantum interference between the photon pairs of the first two
quasi-TE0 and quasi-TE1
radial modes was measured to be
Vnet∼98±0.8% and
Vnet∼94±2.6%, respectively.
The results are promising for achieving higher-dimensional quantum states
using the higher-order radial modes of a micro-disk resonator coupled with
an integrated waveguide.
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