.. _references:

References
===========


Here is a list of useful references:



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1. ref[1]: `Fiber coupler structure <https://opg.optica.org/josab/abstract.cfm?uri=josab-38-7-a7>`_


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2. ref[2] `Fusion geometry <https://opg.optica.org/ao/abstract.cfm?uri=ao-33-36-8361>`_



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3. ref[2] `Taper profile <https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=134196&casa_token=UqxWOXf3BMMAAAAA:li5n-o38PLwP-Vk6-_MDtZgr0EnXcileuIsTUFov1VjRxHqXBz6Kn1H0h5_w2OavPeGSYDCm>`_