Lightwave Electronics Corporation

Cavro Scientific Instruments

Melvin Chan

William M Grossman

Frank J Adams

Robert Caveney

Dana Gilliam

Henry G Plaessman

Michael Bailey

Method and apparatus for stabilization of pulse energies produced by a continuously pumped, Q-switched, solid-state or gas laser, through control of the optical power delivered by an optical pump to the laser, in order to limit the energy emitted in any single laser pulse as a result of Q-switching. The laser pump is driven at full strength for a selected initial refresh time t.sub.r. If a Q-switch trigger signal is received by the laser before the elapsed time .DELTA.t has reached the refresh time t.sub.r, the laser emits a pulse with the reduced energy stored in the laser at that time. If the elapsed time reaches or exceeds the refresh time t.sub.r, the optical pump power subsequently delivered to the laser is reduced to a lower level, which may be time-dependent, that is sufficient to maintain the net energy stored in the laser at a predetermined value so that the energy in a subsequently emitted laser pulse does not exceed a selected limit. Numerous techniques for controlling the optical pump power delivered are disclosed.

Laser pump control for output power stabilization

Digital dilution apparatus is disclosed which performs multiple processing functions such as pipetting, diluting, titrations and the like under microprocessor control. The apparatus is responsive to operator-entered processing requests and performs complex and accurate processing functions. The disclosed apparatus is quite simple and easy to operate and does not require a highly skilled operator.

Digital dilution apparatus and method

Growing community of inventors

Daly City, CA, United States of America

Melvin Chan