Applied Sciences (Nov 2021)

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

  • Kwang-Su Yun,
  • Chong-Hee Yu,
  • Kwon-Seob Lim,
  • Young-Sic Kim,
  • Insu Jeon

DOI
https://doi.org/10.3390/app112311107
Journal volume & issue
Vol. 11, no. 23
p. 11107

Abstract

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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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