| 摘要 |
A thermal contraction stress and a residual contraction stress caused by a difference between the linear expansion coefficients of an optical element unit and a carrier are reduced as much as possible. An optical module includes an optical element unit including optical elements requiring a stress control, and a carrier which supports the optical element unit. As the carrier is made of a material having the same property as that of the substrate material of the optical element, the thermal contraction stress is reduced.
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