Farwell, S.G., Zervas, M.N., Culverhouse, D.O. and Laming, R.I.
Polarisation independent (<0.01 dB) switching in a 2x2 fused fibre null coupler using asymmetric dumbbell cross-section.
Summaries of Papers Presented at the Conference on Lasers and Electro-Optics (CLEO '97 ).
Conference on Lasers and Electro-Optics (CLEO '97 )
Piscataway, United States,
Institute of Electrical and Electronics Engineers.
Polarisation independent (<0.01dB) switching at 1.55µm is achieved in a strongly guiding tapered fibre null coupler acousto-optic switch. A strongly fused asymmetric dumbbell cross-section gives the form birefringence required to render the null coupler polarisation insensitive.
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