A bulk, quasi-periodic phase-matched difference-frequency process is demonstrated in field-poled LiNbO3. Continuous tunability of output radiation in the 3.0–4.1-μm wavelength range is achieved through grating rotation. A maximum mid-infrared output power of 0.5 mW is measured.
© 1995 Optical Society of America
Original Manuscript: February 10, 1995
Published: June 1, 1995
L. Goldberg, R. W. McElhanon, and W. K. Burns, "Difference-frequency generation of tunable mid-infrared radiation in bulk periodically poled LiNbO3," Opt. Lett. 20, 1280-1282 (1995)