Integrated Photonic Devices and Applications for 100GbE-and-Beyond Datacom

Yoshiyuki DOI; Takaharu OHYAMA; Toshihide YOSHIMATSU; Tetsuichiro OHNO; Yasuhiko NAKANISHI; Shunichi SOMA; Hiroshi YAMAZAKI; Manabu OGUMA; Toshikazu HASHIMOTO; Hiroaki SANJOH

doi:10.1587/transele.E99.C.157

Special Section on Recent Advances in Photonics Technologies and Their Applications

Integrated Photonic Devices and Applications for 100GbE-and-Beyond Datacom

Yoshiyuki DOI, Takaharu OHYAMA, Toshihide YOSHIMATSU, Tetsuichiro OHNO, Yasuhiko NAKANISHI, Shunichi SOMA, Hiroshi YAMAZAKI, Manabu OGUMA, Toshikazu HASHIMOTO, Hiroaki SANJOH

Author information

Yoshiyuki DOI
NTT Device Innovation Center, NTT Corporation
Takaharu OHYAMA
NTT Device Innovation Center, NTT Corporation
Toshihide YOSHIMATSU
NTT Device Innovation Center, NTT Corporation
Tetsuichiro OHNO
NTT Device Innovation Center, NTT Corporation
Yasuhiko NAKANISHI
NTT Device Innovation Center, NTT Corporation
Shunichi SOMA
NTT Device Innovation Center, NTT Corporation
Hiroshi YAMAZAKI
NTT Device Technology Laboratories, NTT Corporation
Manabu OGUMA
NTT Device Technology Laboratories, NTT Corporation
Toshikazu HASHIMOTO
NTT Device Technology Laboratories, NTT Corporation
Hiroaki SANJOH
NTT Device Innovation Center, NTT Corporation

Keywords: integrated photonics, datacom, 100GbE/400GbE, optical sub-assembly, arrayed waveguide grating

JOURNAL FREE ACCESS

2016 Volume E99.C Issue 2 Pages 157-164

DOI https://doi.org/10.1587/transele.E99.C.157

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Abstract

We review recent progress in integrated photonics devices and their applications for datacom. In addition to current technology used in 100-Gigabit Ethernet (100GbE) with a compact form-factor of the transceiver, the next generation of technology for 400GbE seeks a larger number of wavelengths with a more sophisticated modulation format and higher bit rate per wavelength. For wavelength scalability and functionality, planar lightwave circuits (PLCs), such as arrayed waveguide gratings (AWGs), will be important, as well higher-order-modulation to ramp up the total bit rate per wavelength. We introduce integration technology for a 100GbE optical sub-assembly that has a 4λ x 25-Gb/s non-return-to-zero (NRZ) modulation format. For beyond 100GbE, we also discuss applications of 100GbE sub-assemblies that provide 400-Gb/s throughput with 16λ x 25-Gb/s NRZ and bidirectional 8λ x 50-Gb/s four-level pulse amplitude modulation (PAM4) using PLC cyclic AWGs.

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