Journal
OPTICS EXPRESS
Volume 28, Issue 22, Pages 32793-32801Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.404847
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Funding
- Science Foundation Ireland [12/RC/2276, 12/RC/2276-P2]
- Science Foundation Ireland (SFI) [12/RC/2276] Funding Source: Science Foundation Ireland (SFI)
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We report on single-mode C-band distributed feedback lasers fabricated through micro-transfer-printing of semiconductor optical amplifier coupons fabricated on a InP source wafer onto a silicon-on-insulator photonic circuit. The coupons are micro-transfer printed on quarter-wave shifted gratings defined in SiN deposited on the silicon waveguide. Alignment-tolerant adiabatic tapers are used to efficiently couple light from the hybrid III-V/Si waveguide to the Si waveguide circuit. 80 mA threshold current and a maximum single-sided waveguide-coupled output power above 6.9 mW is obtained at 20 degrees C. Single mode operation around 1558 nm with > 33 dB side mode suppression ratio is demonstrated. Micro-transfer printing-based heterogeneous integration is promising for the wafer-level integration of advanced laser sources on complex silicon photonic integrated circuit platforms without changing the foundry process flow. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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