Rotary joint for polarization plane maintaining optical fibers

Details Rotary joint for polarization plane maintaining optical fibers Rotary joint for polarization plane maintaining optical fibers

1988-09-22

1989-07-18

Sikes, William L.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

350 9610, 350 9616, 350 9618, 350 9620, 350370, 250227, 250233, G02B 638, H01J 516

Patent

active

048488674

ABSTRACT:
A rotary joint for polarization plane maintaining optical fibers which can couple two polarization plane maintaining optical fibers to each other while maintaining the polarization plane maintaining property. The rotary joint comprises a rotary member, a fixed member, two optical fiber collimators and a 1/2 wavelength plate for coupling a polarization plane maintaining optical fiber connected to the rotary member with another polarization plane maintaining optical fiber connected to the fixed member, and gears for rotating the 1/2 wavelength plate at a speed equal to one half the rotational speed of the polarization plane maintaining optical fiber on the rotary member side.

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Watanabe et al., "New 2-Channel Multiplexer Using Polarisation", Elect. Lett., 2/81, vol. 17, No. 3, pp. 133-135.

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