Compact Hybrid-Integrated 100-Gb/s TOSA Using EADFB Laser Array and AWG Multiplexer

Takaharu Ohyama; Yoshiyuki Doi; Wataru Kobayashi; Shigeru Kanazawa; Takuya Tanaka; Kiyoto Takahata; Atsushi Kanda; Takeshi Kurosaki; Tetsuichiro Ohno; Hiroaki Sanjoh; Toshikazu Hashimoto

doi:10.1109/LPT.2015.2514108

Compact Hybrid-Integrated 100-Gb/s TOSA Using EADFB Laser Array and AWG Multiplexer

Takaharu Ohyama, Yoshiyuki Doi, Wataru Kobayashi, Shigeru Kanazawa, Takuya Tanaka, Kiyoto Takahata, Atsushi Kanda, Takeshi Kurosaki, Tetsuichiro Ohno, Hiroaki Sanjoh, Toshikazu Hashimoto

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

We have developed a compact hybrid-integrated four-lane × 25.8 Gb/s transmitter optical sub-assembly (TOSA) for a 100 Gb/s transceiver for 40-km transmission. The TOSA has a simple configuration in which a four-channel electroabsorption modulator integrated distributed feedback (EADFB) laser array is directly attached to the input waveguide end-faces of a silica-based arrayed waveguide grating (AWG) multiplexer. We integrated a lateral tapered spot-size converter for the EADFB laser to achieve a high optical butt coupling efficiency between the EADFB lasers array and the AWG multiplexer. We confirmed that the TOSA, which is 19.9 mm × 6 mm × 5.8 mm, achieved error-free operation for a 40-km transmission with a high average optical output power of over 0.3 dBm at an operating temperature of 55 °C.

Original language	English
Article number	7370759
Pages (from-to)	802-805
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	28
Issue number	7
DOIs	https://doi.org/10.1109/LPT.2015.2514108
Publication status	Published - 2016 Apr 1
Externally published	Yes

Keywords

100-Gbit/s Ethernet
AWG multiplexer
EADFB laser
TOSA
butt coupling
hybrid-integration
spot-size converter

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2015.2514108

Cite this

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title = "Compact Hybrid-Integrated 100-Gb/s TOSA Using EADFB Laser Array and AWG Multiplexer",

abstract = "We have developed a compact hybrid-integrated four-lane × 25.8 Gb/s transmitter optical sub-assembly (TOSA) for a 100 Gb/s transceiver for 40-km transmission. The TOSA has a simple configuration in which a four-channel electroabsorption modulator integrated distributed feedback (EADFB) laser array is directly attached to the input waveguide end-faces of a silica-based arrayed waveguide grating (AWG) multiplexer. We integrated a lateral tapered spot-size converter for the EADFB laser to achieve a high optical butt coupling efficiency between the EADFB lasers array and the AWG multiplexer. We confirmed that the TOSA, which is 19.9 mm × 6 mm × 5.8 mm, achieved error-free operation for a 40-km transmission with a high average optical output power of over 0.3 dBm at an operating temperature of 55 °C.",

keywords = "100-Gbit/s Ethernet, AWG multiplexer, EADFB laser, TOSA, butt coupling, hybrid-integration, spot-size converter",

author = "Takaharu Ohyama and Yoshiyuki Doi and Wataru Kobayashi and Shigeru Kanazawa and Takuya Tanaka and Kiyoto Takahata and Atsushi Kanda and Takeshi Kurosaki and Tetsuichiro Ohno and Hiroaki Sanjoh and Toshikazu Hashimoto",

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AU - Ohyama, Takaharu

AU - Doi, Yoshiyuki

AU - Kobayashi, Wataru

AU - Kanazawa, Shigeru

AU - Tanaka, Takuya

AU - Takahata, Kiyoto

AU - Kanda, Atsushi

AU - Kurosaki, Takeshi

AU - Ohno, Tetsuichiro

AU - Sanjoh, Hiroaki

AU - Hashimoto, Toshikazu

PY - 2016/4/1

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AB - We have developed a compact hybrid-integrated four-lane × 25.8 Gb/s transmitter optical sub-assembly (TOSA) for a 100 Gb/s transceiver for 40-km transmission. The TOSA has a simple configuration in which a four-channel electroabsorption modulator integrated distributed feedback (EADFB) laser array is directly attached to the input waveguide end-faces of a silica-based arrayed waveguide grating (AWG) multiplexer. We integrated a lateral tapered spot-size converter for the EADFB laser to achieve a high optical butt coupling efficiency between the EADFB lasers array and the AWG multiplexer. We confirmed that the TOSA, which is 19.9 mm × 6 mm × 5.8 mm, achieved error-free operation for a 40-km transmission with a high average optical output power of over 0.3 dBm at an operating temperature of 55 °C.

KW - 100-Gbit/s Ethernet

KW - AWG multiplexer

KW - EADFB laser

KW - TOSA

KW - butt coupling

KW - hybrid-integration

KW - spot-size converter

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Compact Hybrid-Integrated 100-Gb/s TOSA Using EADFB Laser Array and AWG Multiplexer

Abstract

Keywords

ASJC Scopus subject areas

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