CPC G02B 6/2552 (2013.01) [C03C 25/68 (2013.01); G02B 6/3692 (2013.01)] | 19 Claims |
19. An optical fiber comprising:
a cladding;
a single mode core enclosed within the cladding;
an adiabatically tapered waist region having a first adiabatic taper; and
the adiabatically tapered region including a subregion at a midpoint thereof being chemically etched to a diameter of about 2 microns, to create a second adiabatic taper which differs from the first adiabatic taper.
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