Optical polarizer having a prism

Details Optical polarizer having a prism Optical polarizer having a prism

1983-02-07

1985-12-03

Arnold, Bruce Y.

350286, G02B 2728

Patent

active

045562920

ABSTRACT:
An optical polarizer for an optical isolator has a dove prism having a selected geometric shape such that both the incident and emerging beams satisfy the Brewster condition at the respective entrance and exit faces. A further embodiment of the invention consists of the combination of two dove prisms with an intervening multiple layer. The polarizer can be easily adjusted with no reduction in the coupling efficiency with incoming light, can be manufactured inexpensively, and exhibits no parallel offset or astigmatism.

REFERENCES:
patent: 3026763 (1962-03-01), Marks
patent: 3564450 (1971-02-01), Immarco et al.
patent: 3612652 (1971-10-01), Habegger
"Microoptic Grating Multiplexers and Optical Isolators for Fiber-Optic Communications," Kobayashi et al., IEEE Journal of Quantum Electronics, vol. QE-16, No. 1, Jan. 1980, pp. 11-22.
"Ein kontinuierlich einstellbarer Laserstrahl-Abschwacher aus dielektrischen Vielfacheschichten," Mahlein et al., Optic 38, vol. 2, 1973, pp. 187-195.
"Optics", Hecht et al., Addison-Wesley, 1974, p. 133.
"Zur Theorie der Abbildung einzelner Atome in dicken Objekten," Scherzer, Optik 38, vol. 4, 1973, pp. 387-405.

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