Journal
OPTICS LETTERS
Volume 38, Issue 23, Pages 5090-5093Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.38.005090
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Funding
- National Research Foundation (NRF)
- Korean Government (MEST) [2011-0017494, 2008-0061906]
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We report Q-switched operation of a planar waveguide laser by evanescent-field interaction with single-walled carbon nanotubes deposited on top of the waveguide. The saturable-absorber-integrated gain medium, which operates based on evanescent-field interaction, enables the realization of a diode-pumped 2.5-cm-long Q-switched Yb:KYW waveguide laser emitting at 1030 nm. With such a compact cavity design, we achieve maximum output powers of up to 30 mW, corresponding to a single-pulse energy of 124 nJ, at 241 kHz repetition rate. The shortest pulse duration of 433 ns is generated at a repetition rate of 231 kHz. (C) 2013 Optical Society of America
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