Multi-channel and high-density hybrid integrated light source by thermal management for low power consumption for ultra-high bandwidth optical interconnection

Shimizu, Takanori; Okano, Makoto; Takahashi, Hiroyuki; Hatori, Nobuaki; Ishizaka, Masashige; Yamamoto, Tsuyoshi; Mori, Masahiko; Horikawa, Tsuyoshi; Urino, Yutaka; Nakamura, Takahiro; Arakawa, Yashuhiko

doi:10.1109/icep.2014.6826766

Cited by 3 publications

(1 citation statement)

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“…We previously developed a hybrid integrated light source with a laser diode (LD) array on a silicon optical waveguide platform [3] and demonstrated a light source with over 100 output ports in which the number of output ports was increased by using a waveguide splitter and multichip bonding [4,5]. Moreover, we demonstrated a hybrid integrated light source with over 1000 channels by showing the near field patterns of the output ports [6] and their structural optimization for low power consumption by considering the thermal interference between LD arrays [7,8].…”

Section: Introductionmentioning

confidence: 99%

Optical Characteristics of a Multichannel Hybrid Integrated Light Source for Ultra-High-Bandwidth Optical Interconnections

et al. 2015

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The optical characteristics of a multi-channel hybrid integrated light source were described for an optical interconnection with a bandwidth of over 10 Tbit/s. The power uniformity of the relative intensity of a 1000-channel light source was shown, and the minimum standard deviation  of the optical power of the 200 output ports at each 25-channel laser diode (LD) array was estimated to be 0.49 dB. This hybrid integrated light source is expected to be easily adaptable to a photonics-electronics convergence system for ultra-high-bandwidth interchip interconnections.

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Section: Introductionmentioning

confidence: 99%

Optical Characteristics of a Multichannel Hybrid Integrated Light Source for Ultra-High-Bandwidth Optical Interconnections

et al. 2015

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Over-1000-channel hybrid integrated light source with laser diode arrays on a silicon waveguide platform for ultra-high-bandwidth optical interconnections

Shimizu

Hatori

Ishizaka

et al. 2014

IEEE CPMT Symposium Japan 2014

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Multi-channel Hybrid Integrated Light Source for Ultra-high-bandwidth Optical Interconnections and Its Structural Optimization for Low Power Consumption by Considering Thermal Interference between LD Arrays

Shimizu

Ishizaka

Hatori

et al. 2014

Transactions of The Japan Institute of Electronics Packaging

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The overall interchip bandwidth in central processing units (CPUs) used for high-end servers is expected to reach the 10-Tbit/s level by the late 2010s. Multi-core CPUs, 3D-memories, and 3D solid state drives are expected to be integrated on a silicon optical interposer that will support high-bandwidth optical interconnects among the components in an on-chip server targeted for development in the 2020s.[1] Optical interconnection using silicon photonics is a promising solution to the problem of bandwidth bottleneck among LSI chips because of the intrinsic properties of optical signals and the compatibility with complementary metal oxide semiconductor process technology. We previously proposed a photonics-electronics convergence system in which a continuous wave (CW) light source, optical modulators, and photodetectors are linked by silicon optical waveguides on a silicon interposer and LSI chips are mounted and electrically connected to the optical modulators and photodetectors.[2-4] In this system, the integrated CW light source must be multi-channel, and have high density and high power. An over-1,000-channel light source is required to reach a bandwidth of around 10-Tbit/s, if 10 Gbit/s per channel is assumed. We previously developed a hybrid integrated light source with a laser diode array on a silicon optical waveguide platform,[5] demonstrated a light source with over 100 output ports in which the number of output ports is increased by using a waveguide splitter and multichip bonding[6] and estimated the power uniformity of the output ports.[7] More recently, we demonstrated a hybrid integrated light source with over 1,000 channels.[8, 9] In this paper, we present a multi-channel hybrid integrated light source for ultra-high-bandwidth optical interconnections. In section 2, we describe its hybrid integration structure and fabrication technology. In section 3, we describe its optimization to reduce power consumption based on consideration of the thermal interference between the channels in a laser diode (LD) array and also

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Multi-channel and high-density hybrid integrated light source by thermal management for low power consumption for ultra-high bandwidth optical interconnection

Cited by 3 publications

References 9 publications

Optical Characteristics of a Multichannel Hybrid Integrated Light Source for Ultra-High-Bandwidth Optical Interconnections

Optical Characteristics of a Multichannel Hybrid Integrated Light Source for Ultra-High-Bandwidth Optical Interconnections

Over-1000-channel hybrid integrated light source with laser diode arrays on a silicon waveguide platform for ultra-high-bandwidth optical interconnections

Multi-channel Hybrid Integrated Light Source for Ultra-high-bandwidth Optical Interconnections and Its Structural Optimization for Low Power Consumption by Considering Thermal Interference between LD Arrays

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