Abstract

This paper introduces an innovative He-Ne laser which exhibits many advantages to current He-Ne lasers. With cat’s eye reflector as the reflecting mirror, the new laser can solve the conventional problems of laser adjustment and power stability. Comprehensive experiments are carried out both in a half-external cavity and a full-external cavity He-Ne laser. Then the results from the cat’s eye cavity, plane-concave mirror cavity and concave-concave mirror cavity are compared, which show that in half-external cavity laser, cat’s eye cavity can improve the laser stability up to 10 times better than other cavities and lower the power drift significantly. And in the full-external case the improvements are much greater even up to 60 times and power drift is minished greatly too. The adjustment problem is also considered and solved. A stable and adjustment-free He-Ne laser is finally realized. The examination of a cat’s eye reflector is described.

© 2005 Optical Society of America

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References

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Appl. Opt. (3)

Chin. J. Lasers (1)

Y. Cheng, B. Chen, X. B. Wang, B. Sun, G. C. Wang, Y. J. Jin, P. F. Wang, �??Study on diode pumped solid laser (DPSL) with Alignment-free Resonator,�?? Chin. J. Lasers 30, 973-976 (2003).

CLEO (1)

S. A. Dimakov, U. Habich, S. Kliment'ev, et al., �??Comparison of Radiation Characteristics of Lasers Equipped with Ordinary Stable Resonator and Resonator with Cat-Eye Type Mirror,�?? Conference on Lasers and Electro-Optics Europe - Technical Digest, CWI6, 218 (1998).

J. Opt. Technol. (1)

Opt. Commun. (1)

B. Fermigier, G. Lucas-Leclin, J. Dupont, F. Plumelle, M. Houssin, �??Self-aligned external-cavity semiconductor lasers for high resolution spectroscopy,�?? Opt. Commun. 153, 73-77 (1998).
[CrossRef]

Opt. Eng. (1)

M. L. Biermann, W. S. Rabinovich, R.Mahon, G. C. Gilbreath, �??Design and analysis of a diffractionlimited cat's-eye retroreflector,�?? Opt. Eng. 41, 1655-1660 (2002).
[CrossRef]

Proc IEEE (1)

T. Li, P. W. Smith, �??Mode selection and mode volume enhancement in a gas laser with internal lens,�?? Proceedings of IEEE, 53, 399-400 (1965).
[CrossRef]

Proc SPIE (2)

S. A. Dimakov, S. I. Kliment�??ev, V. I. Kyprenyuk et al., �??Low-sensitive to misalignments resonator,�?? Proceedings of SPIE. 2257, 187-192 (1994).
[CrossRef]

V. E. Sherstobitov, A. A. Ageichik, V. D. Bulaev, et al., �??Phase conjugation in a high-power E-beam sustained CO2 laser,�?? Proc. SPIE. 1841, 135-145 (1991).
[CrossRef]

Supplementary Material (2)

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Figures (17)

Fig. 1.
Fig. 1.

Obliquely incident paraxial beam to a cat’s eye reflector (a), a plane mirror (b) and a concave mirro r (c).

Fig. 2.
Fig. 2.

A half-external He-Ne laser with a cat’s eye reflector as the reflecting mirror.

Fig. 3.
Fig. 3.

Laser Power variation with three mirrors moved along a 150mm lineal guide.

Fig. 4.
Fig. 4.

Power drifts of three lasers

Fig. 5.
Fig. 5.

Laser Power variation with 3 reflecting mirrors respectively rotated in up-and-down and right-and-left directions: abscissa axis: swing angle (minute), vertical axis: laser power (mW) (a) plane mirror; (b) concave mirror; (c) cat’s eye reflector real line: up-and-down direction; dotted line: right-and-left direction.

Fig. 6.
Fig. 6.

(2.31 MB) Movie of making the laser working with the cat’s eye reflector in hand as the resonator mirror.

Fig. 7.
Fig. 7.

Intensity pattern of the adjustment-free He-Ne Laser.

Fig. 8.
Fig. 8.

An external cavity laser with a cat’s eye reflector as reflecting mirror.

Fig. 9.
Fig. 9.

Laser Power variation with the two reflecting mirrors respectively rotated in up-and-down and right-and-left directions. The left figure is for plane-concave cavity and the right one is for the cat’s eye cavity.

Fig. 10.
Fig. 10.

Laser Power variation with the output mirror adjusted in up-and-down and right-and-left directions in the plane-concave cavity.

Fig. 11.
Fig. 11.

Laser Power variation when the output mirror adjusted in up-and-down and right-and-left directions in the cat’s eye cavity.

Fig. 12.
Fig. 12.

Laser Power variation with the cat’s eye reflector moving in up-and-down and right-and-left directions.

Fig. 13.
Fig. 13.

Laser power drift in favorable circumstance.

Fig. 14.
Fig. 14.

Laser power drift in tough circumstance.

Fig. 15.
Fig. 15.

Laser power drift from 8 to 40 minutes.

Fig. 16.
Fig. 16.

(1.30 MB) Movie of making the laser working with cat’s eye reflector held by tweezers as the resonator.

Fig. 17.
Fig. 17.

Apparatus examining a cat’s eye reflector.

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