Laser capable of producing a frequency standard

Details Laser capable of producing a frequency standard Laser capable of producing a frequency standard

1976-11-05

1978-10-17

Larkins, William D.

Oscillators

Molecular or particle resonant type

331 945C, 331 945N, 331 945PE, 331 945S, H01S 313, H01S 323

Patent

active

041211782

ABSTRACT:
A laser for producing a stable frequency standard which finds applicability within a clock. The laser contains a pair of active materials having close but non-overlapping gain profiles so that the laser can oscillate at frequencies particular to each active material without interraction therebetween. The beat frequency generated between the two laser frequencies is highly stable and can be readily used as a frequency standard.

REFERENCES:
patent: 3686585 (1972-08-01), Javan et al.
patent: 3753148 (1973-08-01), Billman
patent: 3755678 (1973-08-01), Javan
Whitford et al., IEEE Trans. on Instrum. Meas., vol. IM23, No. 4, Dec. 1974, pp. 535-539.
Petersen et al., IEEE Jour. Quant. Electron., vols. QE11, No. 10, pp. 838-843, and QE12, No. 2, pp. 86-87, (Oct. 1975 and Feb. 1976).
Freed et al., Appl., Phys. Lett., vol. 17, No. 2, 15 Jul. 1970, pp. 53-56.
Stein, IEEE Jour. Quant. Electron., vol. QE11, No. 8, Aug. 1975, pp. 630-631.

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