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Inherently mode-hop-free distributed Bragg reflector (DBR) laser array

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9 Author(s)
Fujiwara, N. ; NTT Photonics Labs., NTT Corp., Kanagawa, Japan ; Kakitsuka, Takaaki ; Ishikawa, M. ; Kano, F.
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An inherently mode-hop-free tuning of 4.5 nm was achieved with a short-active-region distributed Bragg reflector (DBR) laser. The DBR laser contains no phase-adjustment electrode, which greatly simplifies the tuning. Fast tuning of several nanoseconds and error-free operation for 2.5-Gbit/s direct modulation were also observed. A 4-ch array of short-active-region DBR lasers achieved wavelength tuning of 12.5 nm.

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:9 ,  Issue: 5 )