Alexandrite-pumped alexandrite regenerative amplifier for femtosecond pulse amplification

Journal Article · Mon Jan 01 00:00:00 EST 1996 · Optics Letters

DOI:https://doi.org/10.1364/OL.21.000128· OSTI ID:434546

Hariharan, A; Fermann, M E; Stock, M L; Harter, D J ^[1]; Squier, J ^[2]

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1. IMRA America, Inc., 1044 Woodridge Avenue, Ann Arbor, Michigan 48105 (United States)
2. Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093-0339 (United States)

We demonstrate a regenerative amplifier incorporating alexandrite as the gain medium that is pumped by an alexandrite laser. Temperature-altered gain permitted the 728-nm alexandrite pump laser, operating at room temperature, to pump a 780{endash}800-nm alexandrite laser that was maintained at elevated temperatures. 200-fs pulses from a Ti:sapphire oscillator were amplified to the millijoule level. This system also amplified femtosecond pulses from a frequency-doubled Er-doped fiber laser. {copyright} {ital 1996 Optical Society of America.}

• Sponsoring Organization: USDOE
• OSTI ID: 434546
• Journal Information: Optics Letters, Vol. 21, Issue 2; Other Information: PBD: Jan 1996
• Country of Publication: United States
• Language: English

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