Coherent light generators – Particular beam control device – Mode discrimination
Patent
1988-12-28
1989-09-26
Sikes, William L.
Coherent light generators
Particular beam control device
Mode discrimination
372 49, 372 46, 372 44, 372 99, 372103, H01S 3098
Patent
active
048706493
ABSTRACT:
A reflection filter is disposed on a solid state laser so as to preferentially reflect TE or TM modes and to suppress oscillation within the resonator of the non-reflected modes. In one embodiment, the filter includes a layer having a plurality of grooves which may be straight and parallel or curved to approximate the mode shape. In another embodiment, the filter includes a polarization sensitive film, without grooves, which either absorbs or transmits the undesired mode. Specifically described is a buried heterostructure semiconductor DFB laser with such a reflection filter formed on at least one facet thereof.
REFERENCES:
patent: 3868589 (1975-02-01), Wang
patent: 4084130 (1978-04-01), Holton
patent: 4496518 (1985-01-01), Marie
patent: 4516243 (1985-05-01), Utaka et al.
Smith et al., "High-Power Single-Frequency Lasers Using Thin Metal Film Mode-Selection Filters," The Bell System Technical Journal, vol. 48, No. 5, May-Jun. 1969, pp. 1405-1419.
Applied Physics Letters, vol. 18, #12, Jun. 15, 1971; pp. 565-567, "Efficient Wire-Grid Duplexer Polarizer for CO.sub.2 Laser", P. K. Cheo et al.
Applied Optics, Jun. 1967, vol. 6, No. 6; pp. 1023-1027; J. P. Auton, "Infrared Transmission Polarizers by Photolithography".
The Encyclopedia of Physics, Third Edition, R. M. Besancon, p. 952.
Bobeck Andrew H.
Harriott Lloyd R.
Hartman Robert L.
Kaplan Daniel R.
Przybylek George J.
American Telephone and Telegraph Company AT&T Bell Laboratories
Epps Georgia Yvonne
Sikes William L.
Urbano M. J.
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