A laser system includes a laser resonator cavity having a resonant axis and a lasing element within the laser resonator cavity. The lasing element emits, under stimulation, light at a wavelength of from about 1.6 to about 2.3 micrometers. There is a flash lamp, laser diodes or other pumping devices, which optically pump the lasing element to emit laser light. A Q-switch crystal lies along the resonant axis within the laser resonator cavity. The Q-switch crystal is formed of a host material having a concentration of Ho.sup.3+ ions therein, so as to be a saturable absorber of light of a wavelength of about 2.0-2.1 micrometers. The Q-switch crystal is preferably Ho.sup.3+ -doped yttriumlithium-fluoride, or Ho.sup.3+ -doped yttrium-vanadate. In another embodiment, the Q-switch crystal is preferably Cr.sup.2+ :fosterite (Mg.sub.2 SiO.sub.4).
Please note there is up to 60 days of latency in this Status indicator for certain status conditions. You can obtain up-to-date Status indicator readings by ordering PAIR for the file.
An application with the status "Published" (which means it is pending) may be recently abandoned, but not yet updated to reflect its abandoned status. However, an application filed less than one year ago is unlikely to be abandoned.
A patent with the status "Granted" may be recently expired, but not yet updated to reflect its expired status. However, it is highly unlikely a patent less than 3.5 years old would be expired.
An application with the status "Abandoned" is almost always current, but there is a small chance it was recently revived and the status not yet updated.
This priority date is an estimated earliest
priority date and is purely an estimation. This date should not be
taken as legal conclusion. No representations are made as to the
accuracy of the date listed. Please consult a legal professional
before relying on this date.