Amplifying mirrors with saturated gain without and with a resonator

Torben Skettrup

Research output: Contribution to journalJournal articleResearchpeer-review


An investigation of amplifying mirrors with a view to their use in resonator structures has been performed. Both non-saturated and saturated amplifying mirrors are demonstrated. It was found that relatively high values of gain (typical 5-10 times) can be obtained even when saturation is taken into account. Several resonator structures containing from two up to four mirrors, some including beamsplitters, are investigated. It was found that the gain to a first approximation depends only on the ratio between the pumping power and the input power on the amplifying mirror. It was also found that the configuration with four mirrors is well suited as an amplifier device working as an optical transistor since high values of gain up to 40 times could be obtained.
Original languageEnglish
JournalJournal of Optics A: Pure and Applied Optics (Print)
Issue number2
Pages (from-to)194-208
Publication statusPublished - 2007


  • amplifying mirrors
  • optical resonators
  • optical amplifiers
  • coupled optical resonators


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