Abstract
Two multichannel 1.3-μm lens integrated surface-emitting laser arrays for massive data
links were fabricated. The basic structure of the lasers consists of a short
InGaAlAs multiple-quantum-well distributed-feedback (DFB) active-stripe array
monolithically integrated with both a 45° total reflection mirror and an aspheric
collimation lens. One of them, a four-channel laser array based on this structure,
exhibited clear 25-Gb/s eye openings up to 50 °C over all four channels and
achieved a total output of 100 Gb/s. The other laser, a multiple-wavelength
array for wavelength-division-multiplexing applications, produces multiple-wavelength
emission thanks to precisely modified DFB gratings by electron beam lithography.
It exhibited nine-wavelength stable single-mode operation (side-mode suppression
ratio >40 dB)
between 1260 and 1290 nm at 3.7-nm intervals, and a clear 25-Gb/s eye opening
for each wavelength. These two surface-emitting laser arrays have demonstrated
their suitability for next-generation multichannel data links (including 100-Gb
Ethernet and optical interconnects).
© 2011 IEEE
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