Inventor
JOHNSON BERTRAM C
US12 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSON BERTRAM C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPECTRA PHYSICS
7 patentsUS4873692AOct 10, 1989
Pulsed tunable solid state laser
SPECTRA PHYSICS54 citations96
US4918395AApr 17, 1990
Multipass laser amplifier with at least one expanded pass
SPECTRA PHYSICS30 citations92
US4872181AOct 3, 1989
Laser resonator with laser medium exhibiting thermally induced birefringence
SPECTRA PHYSICS33 citations92
US5001716AMar 19, 1991
Tunable electro-optic Q-switch, and lasers using same
SPECTRA PHYSICS40 citations90
US4955725ASep 11, 1990
Laser oscillator/amplifier with compensation for stress birefringence
SPECTRA PHYSICS16 citations73
US4935932AJun 19, 1990
Apparatus using induced birefringence to improve laser beam quality
SPECTRA PHYSICS16 citations73
US4894837AJan 16, 1990
Absorbing filter in pump cavity for control of beam quality
SPECTRA PHYSICS18 citations73
SPECTRA PHYSICS LASERS INC
3 patentsUS5390211AFeb 14, 1995
Optical parametric oscillator with unstable resonator
SPECTRA PHYSICS LASERS INC61 citations95
US5477378ADec 19, 1995
Multiple crystal non-linear frequency conversion apparatus
SPECTRA PHYSICS LASERS INC20 citations92
US5272713ADec 21, 1993
High repetition rate pulsed laser
SPECTRA PHYSICS LASERS INC53 citations88