期刊
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
卷 22, 期 6, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSTQE.2016.2593637
关键词
Integrated optoelectronics; optical fiber communication; packaging; optical polymers; flip-chip devices
Silicon photonics leverages microelectronic fabrication facilities to achieve photonic circuits of unprecedented complexity and cost efficiency. This efficiency does not yet translate to optical packaging, however, which has not evolved substantially from legacy devices. To reach the potential of silicon photonics, we argue that disruptive advances in the packaging cost, scalability in the optical port count, and scalability in the manufacturing volume are required. To attain these, we establish a novel photonic packaging direction based on leveraging existing microelectronics packaging facilities. We demonstrate two approaches to fiber-to-chip interfacing and one to hybrid photonic integration involving direct flip-chip assembly of photonic dies. Self-alignment is used throughout to compensate for insufficient placement accuracy of high-throughput pick and place tools. We show a self-aligned peak transmission of -1.3 dB from standard cleaved fibers to chip and of -1.1 dB from chip to chip. The demonstrated approaches are meant to be universal by simultaneously allowing wide spectral bandwidth for coarse wavelength division multiplexing and large optical-port count.
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