Optical power divider

Details Optical power divider Optical power divider

G - Physics

02

B

345/56

G02B 6/28 (2006.01)

Patent

CA 1154136

21.3.80 PHD 79046 ABSTRACT: Optical power divider. An optical power divider comprising one incom- ing and a plurality of outgoing glass fibres as well as an imaging device arranged on an optical axis between the incoming and outgoing glass fibres, for the trans- mission of radiation which travels through the incoming glass fibre to the outgoing glass fibres, at least one plane binary phase grating being disposed in the pupil of the imaging device, which grating is one-dimensional, has a duty factor of at least substantially 1 : 1 and an optical path difference of at least substantially H = 0.32 .lambda. + n .lambda. or H' = 0.5.lambda. + n .lambda. where n = 0,1,2 ..., the end of the incoming glass fibre being coaxial with the optical axis and the outgoing glass fibres being ar- ranged in such a way that they receive the radiation which has been diffracted into the various diffraction orders of the phase grating, .lambda. being the wavelength of the radiation.

349579

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