Modal-insensitive biconical taper couplers

Details Modal-insensitive biconical taper couplers Modal-insensitive biconical taper couplers

1985-09-09

1986-05-06

Lee, John

350320, G02B 628

Patent

active

045867844

ABSTRACT:
The modal-insensitive coupler consists of a number N of optical multimode fiber lengths, each fiber length having a core of initial predetermined cross-sectional area. The fiber lengths are fused together in a coupling section such that the cores of the fiber lengths have a reduced cross-sectional area in the coupling section which supports a minimum number of modes of optical energy at a predetermined wavelength, and such that the fiber lengths have different core cross-sectional areas to produce preselected coupling ratios.

REFERENCES:
patent: 4243296 (1981-01-01), Aulich et al.
patent: 4291940 (1981-09-01), Kawasaki et al.
patent: 4392712 (1983-07-01), Ozeki
patent: 4449781 (1984-05-01), Lightstone et al.

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