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We successfully demonstrate for the first time, VCSEL-to-silicon grating coupler flip-chip assembly using SU8 prism fabricated by non-uniform laser ablation. Excess loss of < 1 dB and data transmission up to 20 Gb/s @ 1550 nm was achieved.
Laser-Induced Forward Transfer (LIFT) is an additive and versatile direct-write technique for a single-step pattern- definition and material transfer [1]. In LIFT, a laser pulse is focused through a transparent substrate (the carrier) onto the rear side of a thin film of the material to be printed (the donor) that transfers a donor pixel to another substrate (the receiver) placed in close proximity...
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