Fiber optic depolarizer for optical time domain reflectometer an

Details Fiber optic depolarizer for optical time domain reflectometer an Fiber optic depolarizer for optical time domain reflectometer an

1994-06-13

1995-07-11

Lee, John D.

Optical: systems and elements

Polarization without modulation

By relatively adjustable superimposed or in series polarizers

385 11, 385 31, G02B 530

Patent

active

054326370

ABSTRACT:
Apparatus for depolarizing light in fiber optics, comprises of a pair of fiber optic collimators and plurality of contiguous slabs of linear birefringent plates arranged in a stack forming a parallel slab. The optical axes of said linear birefringent plates are approximately 45 degrees with respect to each other. Thicknesses of said linear birefringent plates are such that their individual polarization mode delays exceed coherence time of a beam defined by an optical source.

REFERENCES:
patent: 4746184 (1988-05-01), Gang
patent: 4968112 (1990-11-01), Lovely et al.
patent: 5136667 (1992-08-01), Ohno et al.
patent: 5257329 (1993-10-01), Blyler et al.
patent: 5335064 (1994-08-01), Nishiura et al.

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