Pulsed laser

Patent · Tue Sep 24 00:00:00 EDT 1991

OSTI ID:5539023

Putnam, R S

This patent describes a pulsed laser. It comprises pumped laser gain cells, each gain cell emitting amplified light within a different respective frequency range in first and second opposite directions; a corresponding plurality of first mirrors, each mirror disposed to receive the light emitted from or passed through the corresponding gain cell in the first direction, and reflecting the light back through the gain cell; a common second mirror, positioned to receive the light emitted by or passed through all of the gain cells in the second direction, reflecting a fraction of the light back to the gain cells and transmitting a fraction thereof; a light-dispersing device optically coupling between the common second mirror and each cell the light within the respective frequency range; and a mode locker interposed in the path of the light reflected by the common mirror and preferentially transmitting the phases of the respective frequencies that periodically reinforce to produce a high-amplitude pulse, whereby the light transmitted by the common second mirror consists of pulses when the individual gain cells operate continuously.

• Assignee: NOV; NOV-91-042041; EDB-92-060829
• Patent Number(s): US 5052013; A
• Application Number: PPN: US 7-511287
• OSTI ID: 5539023
• Resource Relation: Patent File Date: 20 Apr 1990
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
LASERS
FABRICATION
PULSE GENERATORS
GAIN
LASER MIRRORS
OPTICAL DISPERSION
OPTICAL PUMPING
STIMULATED EMISSION
VISIBLE RADIATION
AMPLIFICATION
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EMISSION
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
FUNCTION GENERATORS
MIRRORS
PUMPING
RADIATIONS
426002* - Engineering- Lasers & Masers- (1990-)