Experimental Demonstration of Full-Range High-Speed High-Reliability Wavelength Switching at DFB Laser with Current/Temperature Cooperative Control

Ye, Shenghong; Che, Ming; Kato, Kazutoshi

doi:10.23919/moc52031.2021.9598091

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Our previous works demonstrated a sub-second 400 GHz wide wavelength switching towards lower frequency (larger injection current) and following gradual decrease of the injection current to retard laser aging by the proposed current/temperature cooperative control. 28) In this paper, we improved the cooperative control method for wider wavelength switching and demonstrated its application in all four wavelength switching scenarios: wavelength switching at a single DFB laser towards both lower and higher frequencies (larger and smaller injection currents) and wavelength switching between two different lasers towards both lower and higher frequencies.…”

Section: Introductionmentioning

confidence: 99%

Strategy of full-C-band fast wavelength switching and aging mitigation at tunable DFB laser array with current/temperature cooperative control

Chen

Ibrahim

et al. 2022

Jpn. J. Appl. Phys.

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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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Section: Introductionmentioning

confidence: 99%