gaaslaser: Gallium-Arsenic Laser Degradation Test

In Auburngrads/SMRD: Statistical Methods For Reliability Data

Description

Over the life of some lasers devices, degradation causes a decrease in light output. In this test, a feedback mechanism was used to maintain a constant light output by increasing the operating current. Fifteen GaAs laser devices were tested at an elevated temperature of 80^o C to accelerate the degradation process. The operating current was measured in 250-hour intervals and the data were recorded as the percent increase in current compared to the initial operating current measured when the test began. A device was considered to have failed if the percent increase reached 10%.

Format

A data.frame with 255 rows and 3 variables:

[, 1]	increase	Percent increase in observed operating current	Numeric
[, 2]	unit	Unit designator code	Categoric
[, 3]	hours	Accumulated time when increase was measured	Numeric

Source

Meeker W.Q. and Escobar L.A. (1998) Statistical Methods for Reliability Data, New York, NY; John Wiley & Sons.

Auburngrads/SMRD documentation built on Sept. 14, 2020, 2:21 a.m.