High Reliability Evaluation and Lifetime Prediction of 50 GHz Athermal AWG Module

Autor: Kwang-Su Yun, Chong-Hee Yu, Kwon-Seob Lim, Young-Sic Kim, Insu Jeon
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Applied Sciences, Vol 11, Iss 23, p 11107 (2021)
Druh dokumentu: article
ISSN: 2076-3417
DOI: 10.3390/app112311107
Popis: A 96-channel (50 GHz-spacing) athermal AWG has been developed. It has a wide operating range due to reduced temperature dependence than conventional AWG. The temperature dependence of the center wavelength of the developed module satisfied the ±0.05 nm range in all channels in the temperature range of −40 °C to 85 °C, and the insertion loss variation was also less than ±0.5 dB. As a result of validating its reliability through tests based on Telcordia-GR-1209 and GR-1221, the temperature dependence of the center wavelength satisfied the ±0.022 nm range, and the insertion loss variation was also less than ±0.2 dB. Accelerated life testing showed an expected service life of over 36.7 years, ensuring long-term safety of communication quality in harsh indoor and outdoor environments.
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