Patent ID: 9709739
Date: 2017-07-18
CPC Classifications: G02B

Claim:
1. A photonic integrated device, comprising: a coupling module configured to receive and transmit optical signals from and to an input-output device and disposed to deliver and receive optical signals in a preferential direction, and waveguides coupled to the coupling module, said coupling module comprising a plurality of optical couplers situated on a same level of a semiconductor film and aligned along at least two axes, wherein each optical coupler is coupled to one of said waveguides, said input-output device comprising a multi-core optical fiber wherein each core is coupled to an optical coupler of the coupling module, each waveguide comprising an external part extending from the coupling module and an internal part extending into the coupling module and connecting the external part to an associated optical coupler, wherein the external part of at least one waveguide extends in the preferential direction and wherein the external part of at least one other waveguide extends in a direction opposite to the preferential direction, the internal part of said at least one other waveguide having a curved portion configured to form a turn-back.