Ultracompact, 160-Gbit/s transmitter optical subassembly based on 40-Gbit/s × 4 monolithically integrated light source

Takeshi Fujisawa, Toshio Itoh, Shigeru Kanazawa, Kiyoto Takahata, Yuta Ueda, Ryuzo Iga, Hiroaki Sanjo, Takayuki Yamanaka, Masaki Kotoku, Hiroyuki Ishii

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The first ultracompact transmitter optical subassembly for longdistance, beyond-100-Gbit/s data communication systems based on a monolithically integrated light source is developed. The light source consists of four InGaAlAs-based electroabsorption modulator integrated DFB lasers (EADFB lasers) and their optical multiplexer and these components are monolithically integrated on one chip, resulting in very small chip size of 2.4 × 3.3 mm2. This small chip makes it possible to reduce the size of the transmitter module. Very small transmitter optical subassemblies (TOSAs), using the chip and employing three-dimensional interconnection board, is fabricated, whose volume is only 1.82 cc. By using the TOSA, 40-Gbit/s × 4 operation with the clear eye openings up to 10-km single mode fibre transmission is demonstrated. Electrical crosstalk under the multi-lane operation is also evaluated, and the error-free transmission is achieved with the power penalty to the discrete operation of 1 dB.

Original languageEnglish
Pages (from-to)182-189
Number of pages8
JournalOptics Express
Volume21
Issue number1
DOIs
Publication statusPublished - 2013 Jan 14
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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  • Cite this

    Fujisawa, T., Itoh, T., Kanazawa, S., Takahata, K., Ueda, Y., Iga, R., Sanjo, H., Yamanaka, T., Kotoku, M., & Ishii, H. (2013). Ultracompact, 160-Gbit/s transmitter optical subassembly based on 40-Gbit/s × 4 monolithically integrated light source. Optics Express, 21(1), 182-189. https://doi.org/10.1364/OE.21.000182