High-power mid-infrared wavelength generation using difference frequency generation in damage-resistant Zn:LiNb03 waveguide |
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| Authors: | Asobe M Tadanaga O Yanagawa T Umeki T Nishida Y Suzuki H |
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| Affiliation: | NTT Corp., Atsugi; |
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| Abstract: | High-power 3.4 mum difference frequency generation (DFG) using a quasi-phase-matched Zn:LiNbO3 waveguide fabricated by direct bonding technology is presented. The high resistance of the waveguide to photorefractive damage allows high-power generation. A 65 mW mid-infrared output was obtained using a continuous-wave high- power fibre amplifier as pump source. The DFG source can access over 10 nm continuously simply by scanning the signal wavelength, and will be useful for real-time trace gas sensing. |
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