Gain media edge treatment to suppress amplified spontaneous emission in a high power laser

Patent · Tue Dec 09 00:00:00 EST 2008

OSTI ID:958722

Hackel, Lloyd A ^[1]; Soules, Thomas F ^[1]; Fochs, Scott N ^[1]; Rotter, Mark D ^[2]; Letts, Stephan A ^[2]

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1. Livermore, CA
2. San Ramon, CA

A novel method and apparatus for suppressing ASE and parasitic oscillation modes in a high average power laser is introduced. By roughening one or more peripheral edges of a solid-state crystal or ceramic laser gain media and by bonding such edges using a substantially high index bonding elastomer or epoxy to a predetermined electromagnetic absorbing arranged adjacent to the entire outer surface of the peripheral edges of the roughened laser gain media, ASE and parasitic oscillation modes can be effectively suppressed.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344; W-7405-ENG-48
• Assignee: Lawrence Livermore National Laboratory, LLC (Livermore, CA)
• Patent Number(s): 7,463,660
• Application Number: 10/984,565
• OSTI ID: 958722
• Country of Publication: United States
• Language: English