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Bias stability of OC48 x-cut lithium-niobate optical modulators: four years of biased aging test results

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3 Author(s)
Nagata, Hirotoshi ; JDS Uniphase Corp., Bloomfield, CT, USA ; Papasavvas, N. ; Maack, D.R.

Long-term 100/spl deg/C and 85/spl deg/C biased aging tests on OC48 x-cut lithium-niobate optical intensity modulators have been run for four years. The 100/spl deg/C test results clearly show that the bias voltage does not exhibit the conventional catastrophic growth curve, but rather peaks between 10 000 and 35 000 h at levels well below typically used bias voltage rails (/spl plusmn/12 V). This promises a very high reliability for these x-cut lithium-niobate modulators for long-term bias-drift failure mode. Using the data, a bias-drift failure rate under ordinary operation conditions, 20 years at 40/spl deg/C, is estimated to be <1 failures in time with activation energy of 1.2 eV.

Published in:

Photonics Technology Letters, IEEE  (Volume:15 ,  Issue: 1 )