期刊
OPTICS LETTERS
卷 35, 期 21, 页码 3616-3618出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.35.003616
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资金
- Ente Cassa di Risparmio di Firenze
- Consiglio Nazionale delle Ricerche
- European Science Foundation
- Regione Toscana
A cw mid-IR coherent source based on difference-frequency generation is designed and characterized. For mid-IR generation, a periodically poled MgO:LiNbO(3) crystal is placed inside a compact Ti:sapphire laser cavity. This provides high-power pump radiation for the nonlinear process. Optical injection by an external-cavity diode laser ensures single-frequency operation of the Ti: sapphire laser, while signal radiation is provided by a fiber-amplified Nd:YAG laser. Mid-IR radiation can be generated with 3850-4540 nm tuning range, narrow linewidth, Cs-standard traceability, and TEM(00) spatial mode. 30 mW power is obtained at 4510 nm. (C) 2010 Optical Society of America
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