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Multi-mode fiber amplifier

  • US 9,570,880 B2
  • Filed: 02/06/2014
  • Issued: 02/14/2017
  • Est. Priority Date: 11/25/1998
  • Status: Expired due to Fees
First Claim
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1. An optical apparatus comprising:

  • a length of multi-mode optical fiber comprising a gain medium and configured to propagate a fundamental mode;

    a length of single mode optical fiber configured to propagate a single mode; and

    a splice between the length of multi-mode optical fiber and the length of single-mode optical fiber,wherein the single mode of the length of single mode optical fiber is matched to the fundamental mode of the length of multi-mode optical fiber.

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