Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1979-03-02
1981-06-09
Punter, William H.
Optics: measuring and testing
Range or remote distance finding
With photodetection
350400, 356350, 331 945C, G02F 109, G01B 902
Patent
active
042721580
ABSTRACT:
A broadband optical diode consists of a Faraday element within a magnetic field and an optically active element. The materials and dimensions of the Faraday element and the optically active element are chosen so that their polarization rotations approximately match over a broad wavelength span, with the rotation angles and the mismatch between them specified by the conditions that the forward wave insertion loss does not exceed a maximum specified value, and the differential loss between forward and backward traveling waves is not less than a minimum specified value.
REFERENCES:
patent: 2078771 (1937-04-01), Myers
patent: 3360323 (1967-12-01), Weisman et al.
patent: 3649931 (1972-03-01), Macek
patent: 3862803 (1975-01-01), Yntema et al.
patent: 3963995 (1976-06-01), Jacob
Jarrett et al., "High-Efficiency Single-Frequency CW Ring Dye Laser", Optics Letters 6-1979, pp. 176-178.
Johnston Jr. et al., "Design & Performance of a Broad-Band Optical Diode to Enforce One-Direction Traveling-Wave Operation of a Ring Laser", IEEE Jr. of Quantum Electronics, 4-1980, pp. 483-488.
Jarrett et al., "High-Efficiency Single-Frequency CW Ring Dye Laser", 10th Internat. Quantum Electronics Conf., Digest of Tech. Papers, Optical Soc. of America, 1978, Conf. 5-29 to 6-1 1978.
Johnston, Jr. Thomas F.
Proffitt William P.
Coherent Inc.
Punter William H.
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