Optical wavelength converting apparatus
US5652757A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1996 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Jun 19, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3553
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an optical wavelength converting apparatus, a fundamental wave impinges upon a crystal of a nonlinear optical material, the type II of phase matching between the fundamental wave and its second harmonic is effected, and the second harmonic of the fundamental wave is thereby radiated out of the optical wavelength converting apparatus. Two crystals constituted of the same material are employed as the crystal. The two crystals have equal lengths and are located in orientations such that corresponding optic axes may be shifted 90.degree. from each other. The optical wavelength converting apparatus yields the second harmonic having the maximum possible output power and yet can be kept small in size and low in cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.