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Device for chemically etching a fiber probe

  • US 6,203,660 B1
  • Filed: 08/16/1999
  • Issued: 03/20/2001
  • Est. Priority Date: 10/29/1997
  • Status: Expired due to Fees
First Claim
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1. A fiber etching device, comprising:

  • a container;

    an etchant solution filled in a bottom portion of said container and chemically reactive to an optical fiber material; and

    a protective solvent chemically inert to the fiber material and having a density smaller than said etchant solution, said protective solvent formed a protective layer on top of said etchant solution, wherein said etchant solution and said protective solvent have predetermined densities and viscosity coefficients to form a substantially flat meniscus on the interface between said etchant solution and protective solvent around the fiber material which has a portion immersed in said etchant solution and said protective solvent, and said container is configured to have a dimension sufficiently greater than a dimension of the immersed portion of the fiber material to maintain convective flows surrounding the immersed portion within said etchant solution.

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