Patent ID: 6424667
Filing Date: 2002-07-23
Classification: H01S

Abstract:
A method for designing a laser module comprising two component parts, wherein the method comprises steps that perform the acts of:specifying an acceptable level of reliability; specifying a temperature range; specifying one or more materials from which the two component parts are to be made and specifying an affixing agent; specifying a structure in which the two component parts are affixed to each other by the affixing agent having a specified thickness; obtaining a measure of reliability for affixation of the two component parts as a function of the specified thickness, the specified structure, coefficients of thermal expansion of the one or more specified materials, and the specified temperature range, wherein the measure of reliability is obtained by estimating strain induced in the affixing agent by differences in thermal expansion of the two component parts across the temperature range; and comparing the measure of reliability with the acceptable level of reliability to determine if the measure of reliability is acceptable and, if the measure of reliability is not acceptable, adjusting the specified thickness of the affixing agent, obtaining a measure of reliability in response to the adjusted thickness, and reiterating as necessary to obtain an acceptable measure of reliability.