1.3-μm, 4 × 25-Gbit/s, EADFB laser array module with large-output-power and low-driving-voltage for energy-efficient 100GbE transmitter

Takeshi Fujisawa, Shigeru Kanazawa, Kiyoto Takahata, Wataru Kobayashi, Takashi Tadokoro, Hiroyuki Ishii, Fumiyoshi Kano

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

A 1.3-μm, 4 × 25-Gbit/s, EADFB laser array module with large output power and low driving voltage is developed for 100GbE. A novel rear grating DFB laser is introduced to increase the output power of the laser while keeping the single mode lasing, which is desirable for a monolithic integration. Also, InGaAlAs-based electroabsorption modulators make very-low-driving-voltage operation possible due to their steep extinction curves. With the module, very clear 25-Gbit/s eye openings are obtained for four wavelengths with the driving voltage of only 0.5 V while securing the dynamic extinction ratio required by the system. These results indicate that the presented module is a promising candidate for energyefficient future 100GbE transmitter.

Original languageEnglish
Pages (from-to)614-620
Number of pages7
JournalOptics Express
Volume20
Issue number1
DOIs
Publication statusPublished - 2012 Jan 2
Externally publishedYes

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laser arrays
low voltage
transmitters
modules
output
extinction
lasers
lasing
energy
modulators
gratings
electric potential
curves
wavelengths

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

1.3-μm, 4 × 25-Gbit/s, EADFB laser array module with large-output-power and low-driving-voltage for energy-efficient 100GbE transmitter. / Fujisawa, Takeshi; Kanazawa, Shigeru; Takahata, Kiyoto; Kobayashi, Wataru; Tadokoro, Takashi; Ishii, Hiroyuki; Kano, Fumiyoshi.

In: Optics Express, Vol. 20, No. 1, 02.01.2012, p. 614-620.

Research output: Contribution to journalArticle

Fujisawa, Takeshi ; Kanazawa, Shigeru ; Takahata, Kiyoto ; Kobayashi, Wataru ; Tadokoro, Takashi ; Ishii, Hiroyuki ; Kano, Fumiyoshi. / 1.3-μm, 4 × 25-Gbit/s, EADFB laser array module with large-output-power and low-driving-voltage for energy-efficient 100GbE transmitter. In: Optics Express. 2012 ; Vol. 20, No. 1. pp. 614-620.
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