| 摘要 |
Laser light generator containing a glass laser rod with a composition so chosen that the net thermal effects on the index of refraction are negated. The algebraic sum of the effects of the change in index of refraction caused by the temperature coefficient of the index of refraction, the coefficient of linear expansion, Poisson's ratio and the stress-optical effects, for light in one plane of polarization is chosen to be near zero, while remaining small but negative for the other polarization component.
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