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Optica Publishing Group
  • Optical Fiber Communication Conference and International Conference on Quantum Information
  • 2001 OSA Technical Digest Series (Optica Publishing Group, 2001),
  • paper ThC3
  • https://doi.org/10.1364/OFC.2001.ThC3

Investigation of single mode fiber coupling using diffractive optical element with continuous relief fabricated by focused ion beam technology

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Abstract

The design, microfabrication and testing of diffractive optical element (DOE’s) with continuous relief and used in fiber coupling, are discussed in detail. DOE’s with diameter as small as 65 µm is realized by means of focused ion beam (FIB) technology. Focused Ga+ ion beam is used to mill a continuous relief microstructure at an acceleration voltage of 50 kV. From the results of the test, a coupling efficiency of 75% was achieved. Thus indicates that the DOE’s was suitably designed within the application requirements and satisfactorily manufactured using FIB.

© 2001 Optical Society of America

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