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Twin coupler with mode scrambling for multimode pumping of optical amplifiers

  • US 6,295,161 B1
  • Filed: 02/05/1999
  • Issued: 09/25/2001
  • Est. Priority Date: 08/23/1997
  • Status: Expired due to Fees
First Claim
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1. A twin coupler system comprising:

  • an optical signal fiber configured to receive and transport an optical signal;

    a pump fiber configured to receive and transport a multimode pump power signal;

    a first coupler for coupling the pump fiber to the optical signal fiber to transfer a first portion of the pump power signal from the pump fiber into the optical signal fiber;

    a mode scrambler for scrambling modes of a second portion of the pump power signal as the second portion of the pump power signal travels through the pump fiber beyond the first coupler; and

    a second coupler for coupling the pump fiber to the optical signal fiber to transfer at least some of the scrambled second portion of the pump power signal from the pump fiber into the optical signal fiber.

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