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Application of a lambda /4-shifted DFB laser/electroabsorption modulator monolithically integrated light source to single-chip pulse generator with variable repetition rate

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3 Author(s)
Suzuki, M. ; KDD R&D Lab., Saitama, Japan ; Tanaka, H. ; Matsushima, Yuichi

The authors have demonstrated the application of a 1.55- mu m lambda /4-shifted DFB laser/InGaAsP electroabsorption modulator monolithically integrated light source to a single-chip pulse generator with variable repetition rate for soliton transmission for the first time. Quasi-transform-limited pulses with a time-bandwidth product of 0.31 were successfully generated up to 8.6-GHz repetition rates by the sinusoidally driven integrated modulator having high modulation efficiency of 13 dB/V. No change of lasing wavelength was observed in the operation scheme of the integrated device as a pulse generator.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:4 ,  Issue: 10 )