Absolute measurement of the effective nonlinearities of KTP and BBO crystals by optical parametric amplification
- Department of Lasers, Optics, and Remote Sensing, Sandia National Laboratories, Albuquerque, New Mexico 87185-1423 (United States)
Absolute magnitudes of the effective nonlinearity, {ital d}{sub eff}, were measured for seven KTP and six BBO crystals. The {ital d}{sub eff}{close_quote}s were derived from the parametric gain of an 800-nm signal wave in the sample crystals when they were pumped by the frequency-doubled, spatially filtered light from an injection-seeded, {ital Q}-switched Nd:YAG laser. The KTP crystals, all type II phase matched with propagation in the {ital X}{endash}{ital Z} plane, had {ital d}{sub eff} values ranging from 1.97 to 3.50 pm/V. Measurements of gain as a function of phase velocity mismatch indicate that two of the KTP crystals clearly contain multiple ferroelectric domains. For five type I phase-matched BBO crystals, {ital d}{sub eff} ranged from 1.76 to 1.83 pm/V, and a single type II phase-matched BBO crystal had a {ital d}{sub eff} of 1.56 pm/V. The uncertainty in our measurements of {ital d}{sub eff} values is {plus_minus}5{percent} for KTP and {plus_minus}10{percent} for BBO. {copyright} {ital 1996 Optical Society of America.}
- Research Organization:
- Sandia National Laboratory
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 288857
- Journal Information:
- Applied Optics, Journal Name: Applied Optics Journal Issue: 12 Vol. 35; ISSN APOPAI; ISSN 0003-6935
- Country of Publication:
- United States
- Language:
- English
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