Frequency-doubling broadband light in multiple crystals

Journal Article · Sun Apr 01 00:00:00 EST 2001 · Journal of the Optical Society of America B

DOI:https://doi.org/10.1364/JOSAB.18.000515· OSTI ID:40205342

Alford, William J; Smith, Arlee V

We compare frequency doubling of broadband light in a single nonlinear crystal with doubling in five crystals with intercrystal temporal walk-off compensation and with doubling in five crystals adjusted for offset phase-matching frequencies. Using a plane-wave dispersive numerical model of frequency doubling, we study the bandwidth of the second harmonic and the conversion efficiency as functions of crystal length and fundamental irradiance. For low irradiance, the offset phase-matching arrangement has lower efficiency than a single crystal of the same total length but gives a broader second-harmonic bandwidth. The walk-off-compensated arrangement gives both higher conversion efficiency and broader bandwidth than a single crystal. At high irradiance, both multicrystal arrangements improve on the single-crystal efficiency while maintaining a broad bandwidth.

• Sponsoring Organization: (US)
• OSTI ID: 40205342
• Journal Information: Journal of the Optical Society of America B, Vol. 18, Issue 4; Other Information: Othernumber: JOBPDE000018000004000515000001; 016104JOB; PBD: Apr 2001; ISSN 0740-3224
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
EFFICIENCY
HARMONICS
MONOCRYSTALS