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Amplifier Chain Using Phthalocyanine Dye

IP.com Disclosure Number: IPCOM000095860D
Original Publication Date: 1964-Aug-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Sorokin, PP: AUTHOR

Abstract

The amplifier chain comprises a series of ruby amplifiers isolated from one another by a non-linear light absorber containing phthalocyanine.

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Amplifier Chain Using Phthalocyanine Dye

The amplifier chain comprises a series of ruby amplifiers isolated from one another by a non-linear light absorber containing phthalocyanine.

The chain consists of a number of ruby lasers 2, 4, 6, etc., in which each ruby contains uncoated surfaces S in the path of lasing light. Individual flash lamps 8 surround each ruby laser and the phthalocyanine cells 10, 12, etc., isolate adjacent ruby lasers from one another. The flash lamps 8 are simultaneously actuated and a giant pulse P from a ruby laser impinges upon the first ruby laser 2 of the chain. None of the ruby lasers in the chain will oscillate when the flash lamps 8 are actuated. This is because the gain of each ruby laser 2 is just below what is needed for oscillations to occur in view of the low reflectivity of the uncoated surfaces S of each ruby laser.

Each phthalocyanine cell acts as a non-linear bleachable absorber. The giant pulse P impinging on the chain of the ruby lasers from the left will be amplified by the first ruby 2 and exit from such first ruby with sufficient intensity to bleach the phthalocyanine cell 10. The amplified pulse passes through the second ruby 4 to again bleach the second phthalocyanine cell 12. The final emerging pulse exiting from the uncoated surface S of the last ruby n of the chain will be a greatly amplified pulse with respect to the original giant ruby pulse which entered the first ruby in the array. The phthalocyanine cell is pa...