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Wavelength-Tunable Short-Cavity DBR Laser Array With Active Distributed Bragg Reflector

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8 Author(s)
Hideo Arimoto ; Central Res. Lab., Hitachi Ltd., Kokubunji ; Takeshi Kitatani ; Tomonobu Tsuchiya ; Kazunori Shinoda
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With the aim of developing a fast wavelength-tunable laser for advanced dynamic network reconfigurations or optical burst switching, a short-cavity (SC) distributed-Bragg-reflector (DBR) laser array with an active-DBR (ADBR) structure (SC-ADBR laser) was fabricated. First, it was experimentally confirmed that the ADBR structure compensates for optical loss and achieves stable single-mode operation during wavelength tuning. An artificial-laser-phase-adjustment technique in the SC-ADBR laser by precise adjustment of a DBR mirror was then proposed. By applying this technique to a six-channel SC-ADBR laser array, perfect wavelength accessibility across a 21-nm range was attained

Published in:

Journal of Lightwave Technology  (Volume:24 ,  Issue: 11 )