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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 31, Iss. 4 — Feb. 15, 2013
  • pp: 602–608

Ultra-Compact 100 GbE Transmitter Optical Sub-Assembly for 40-km SMF Transmission

Shigeru Kanazawa, Takeshi Fujisawa, Nobuhiro Nunoya, Akira Ohki, Kiyoto Takahata, Hiroaki Sanjoh, Ryuzo Iga, and Hiroyuki Ishii

Journal of Lightwave Technology, Vol. 31, Issue 4, pp. 602-608 (2013)


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Abstract

The first ultra-compact transmitter optical sub-assembly (TOSA) has been developed for the metro-area 100 Gbit/s Ethernet (100 GbE) system. Four DFB lasers integrated with electro-absorption modulators (EADFB lasers) operated at 25.8 Gbit/s and an optical multiplexer are monolithically integrated on one chip. The chip was assembled in the compact TOSA using a three-dimensional (3D) RF circuit board supported by a spacer. The new structure provides compact and high-density interconnection with low crosstalk between RF signal lines. The TOSA is very small at just 8.0 mm × 35 mm × 6.5 mm including the receptacle and the flexible printed circuit (FPC) and could be installed in next-generation small form 100 GbE transceivers. In addition, an error-free transmission is demonstrated through 40 km of single-mode fiber at 100 Gbit/s with a modulation voltage of 2 V.

© 2012 IEEE

Citation
Shigeru Kanazawa, Takeshi Fujisawa, Nobuhiro Nunoya, Akira Ohki, Kiyoto Takahata, Hiroaki Sanjoh, Ryuzo Iga, and Hiroyuki Ishii, "Ultra-Compact 100 GbE Transmitter Optical Sub-Assembly for 40-km SMF Transmission," J. Lightwave Technol. 31, 602-608 (2013)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-31-4-602

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