Polarisation state insensitive optical discriminator

Details Polarisation state insensitive optical discriminator Polarisation state insensitive optical discriminator

1992-07-17

1994-05-31

Housel, James C.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356345, 25022727, G01B 902, H01J 516

Patent

active

053173848

ABSTRACT:
A polarization state insensitive optical discriminator is provided by a Mach Zehnder interferometer (21, 22, 23, 24) constructed in polarization preserving optical fibre, and two optical fibre polarization beam splitters (20, 25). Each polarization beam splitter is interconnected with the interferometer in such a way that its two orthogonally polarized outputs are launched to opposite ends of the interferometer with the same state of polarization.

REFERENCES:
patent: 4561119 (1985-12-01), Epworth
patent: 4805235 (1989-02-01), Henmi
patent: 4897543 (1990-01-01), Kersey
patent: 4932738 (1990-06-01), Haas et al.
patent: 4932783 (1990-06-01), Kersey et al.
patent: 4936644 (1990-06-01), Raskin et al.
patent: 5008958 (1991-04-01), Cimini et al.
patent: 5104222 (1992-04-01), Kersey et al.

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