Unstable optical resonators with tilted spherical mirrors

Details Unstable optical resonators with tilted spherical mirrors Unstable optical resonators with tilted spherical mirrors

1978-10-30

1980-12-16

Sikes, William L.

Oscillators

Relaxation oscillators

331 945C, H01S 3083

Patent

active

042393418

ABSTRACT:
Tilted spherical mirrors are used as a means of achieving asymmetric magnification (M.sub.x .noteq.M.sub.y) in collimated-output unstable resonators which obviate fabrication difficulties associated with non-spherical mirrors. By suitable choice of rather large tilt angles of spherical mirrors and mirror separation, simultaneous "confocality" can be achieved in x-z and y-z planes to the lowest order.

REFERENCES:
patent: 3824487 (1974-07-01), Buczek et al.
patent: 4156852 (1979-05-01), Hagen
Siegman, Unstable Optical Resonators for Laser Applications, Proc. IEEE, . 53, (1965), 277.
Siegman, Unstable Optical Resonators, Appl. Optics, vol. 13, (1974), 353.
Kogelnik et al., Astigmatically Compensated Cavities for CW Dye Lasers, IEEE, J. Quant. Electr., QE-8, (1972), 373.
Johnston et al., An Improved Astigmatically Compensated Resonator for CW Dye Lasers, IEEE, J. Quant. Electr., QE-8, (1972), 724.
Dunn et al., Coma Compensation in Off-Axis Laser Resonator, Optics Commun., vol. 20, (1977), 214.

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