Back-reflecting optical attenuator

Details Back-reflecting optical attenuator Back-reflecting optical attenuator

G - Physics

02

F

G02F 1/01 (2006.01) G02B 6/122 (2006.01) G02B 6/125 (2006.01) G02B 6/26 (2006.01) G02B 6/28 (2006.01) G02B 6/34 (2006.01) G02B 6/35 (2006.01) G02F 1/061 (2006.01) G02B 6/12 (2006.01) G02F 1/065 (2006.01)

Patent

CA 2307251

An optical device is disclosed that serves as a variable attenuator in one mode of operation or which can serve as a device for testing a network path. A polymer region is directly coupled to an end of an optical fibre or is coupled directly between two optical fibres. A heater is provided to vary the refractive index of the polymer which results in a refractive index difference between the polymer and the glass cores the polymer is coupled with.

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