Bertram C. Johnson

Person

Sunnyvale, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
High repetition rate pulsed laser
- Patent number 5,272,713
- Issue date Dec 21, 1993
- Spectra-Physics Lasers, Inc.
- Mark S. Sobey
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tunable electro-optic Q-switch, and lasers using same
- Patent number 5,001,716
- Issue date Mar 19, 1991
- Spectra Physics, Inc.
- Bertram C. Johnson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Laser oscillator/amplifier with compensation for stress birefringence
- Patent number 4,955,725
- Issue date Sep 11, 1990
- Spectra-Physics
- Bertram C. Johnson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus using induced birefringence to improve laser beam quality
- Patent number 4,935,932
- Issue date Jun 19, 1990
- Spectra-Physics, Inc.
- Bertram C. Johnson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Multipass laser amplifier with at least one expanded pass
- Patent number 4,918,395
- Issue date Apr 17, 1990
- Spectra-Physics
- John C. DiFonzo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Absorbing filter in pump cavity for control of beam quality
- Patent number 4,894,837
- Issue date Jan 16, 1990
- Spectra-Physics
- John C. DiFonzo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Pulsed tunable solid state laser
- Patent number 4,873,692
- Issue date Oct 10, 1989
- Spectra-Physics
- Bertram C. Johnson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Laser resonator with laser medium exhibiting thermally induced bire...
- Patent number 4,872,181
- Issue date Oct 3, 1989
- Spectra-Physics
- Bertram C. Johnson
- H01 - BASIC ELECTRIC ELEMENTS

Bertram C. Johnson

Person

Patents Grantslast 30 patents

High repetition rate pulsed laser

Tunable electro-optic Q-switch, and lasers using same

Laser oscillator/amplifier with compensation for stress birefringence

Apparatus using induced birefringence to improve laser beam quality

Multipass laser amplifier with at least one expanded pass

Absorbing filter in pump cavity for control of beam quality

Pulsed tunable solid state laser

Laser resonator with laser medium exhibiting thermally induced bire...