Technique For Precise Alignment Of Small Diameter Lasers

Arthur E. McCarthy

doi:10.1117/12.959461

31 December 1980 Technique For Precise Alignment Of Small Diameter Lasers

Arthur E. McCarthy

Proceedings Volume 0251, Optical Alignment I; (1980) https://doi.org/10.1117/12.959461
Event: 24th Annual Technical Symposium, 1980, San Diego, United States

Abstract

This report describes one technique used to obtain orecise alignment of small diameter lasers. This procedure may be useful in the alignment of other lasers, but is especially valuable when aligning lasers that have a small diameter active medium and/or a curved mirror at one end of the laser cavity. The technique described in this report uses a He-ATP laser at one end of the laser being aligned and an autocollimator at the opposite end. These instruments are used to generate and observe the diffraction pattern and interference fringes caused by the limiting aperture of the lasing medium and the end mirrors of the cavity, respectively. These Patterns and fringes are used both to establish a common optical axis between the active volume of the laser being aligned and the aligning instruments, and to set the end mirrors of the cavity normal to this axis.

Citation Download Citation

Arthur E. McCarthy "Technique For Precise Alignment Of Small Diameter Lasers", Proc. SPIE 0251, Optical Alignment I, (31 December 1980); https://doi.org/10.1117/12.959461

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