TY - JOUR
T1 - Strategy of full-C-band fast wavelength switching and aging mitigation at tunable DFB laser array with current/temperature cooperative control
AU - Ye, Shenghong
AU - Che, Ming
AU - Ibrahim, Amalina Athira
AU - Kato, Kazutoshi
N1 - Funding Information:
A part of this work is supported by JSPS KAKENHI JP 20H00253, 21K18730. The authors thank the NTT laboratory for the experiment support.
Publisher Copyright:
© 2022 The Japan Society of Applied Physics.
PY - 2022/8/1
Y1 - 2022/8/1
N2 - We proposed a current/temperature cooperative control to solve the problem of laser aging in the conventional fast wavelength switching method when injecting a larger current at the tunable distributed feedback (DFB) laser array (TLA). Previously, we demonstrated a 400 GHz wide uni-directional switching at a single DFB laser in the TLA with the cooperative control, which switched fastly and retarded laser aging. For large-scale optical communication systems, we have improved the cooperative control method and expanded its application scenarios. In this paper, we not only proposed and achieved bi-directional wavelength switching with cooperative control at a single DFB laser but also realized bi-directional wavelength switching with cooperative control covering full-C-band at two DFB lasers of the TLA. We demonstrated that the switching time is less than 200 ms and estimated that the TLA's lifetime is improved by more than 40 times.
AB - We proposed a current/temperature cooperative control to solve the problem of laser aging in the conventional fast wavelength switching method when injecting a larger current at the tunable distributed feedback (DFB) laser array (TLA). Previously, we demonstrated a 400 GHz wide uni-directional switching at a single DFB laser in the TLA with the cooperative control, which switched fastly and retarded laser aging. For large-scale optical communication systems, we have improved the cooperative control method and expanded its application scenarios. In this paper, we not only proposed and achieved bi-directional wavelength switching with cooperative control at a single DFB laser but also realized bi-directional wavelength switching with cooperative control covering full-C-band at two DFB lasers of the TLA. We demonstrated that the switching time is less than 200 ms and estimated that the TLA's lifetime is improved by more than 40 times.
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U2 - 10.35848/1347-4065/ac6563
DO - 10.35848/1347-4065/ac6563
M3 - Article
AN - SCOPUS:85133030841
SN - 0021-4922
VL - 61
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - SK
M1 - SK1012
ER -