High power pulsed light generation device

Patent metadata

Field	Value
Publication number	US-9048622-B2
Application number	US-201414158250-A
Country	US
Kind code	B2
Filing date	Jan 17, 2014
Priority date	Jul 20, 2011
Publication date	Jun 2, 2015
Grant date	Jun 2, 2015

Abstract

A high power pulsed light generation device includes: a master clock generator that generates a master signal; an optical oscillator that generates a pulsed light synchronized with the master clock signal; an optical amplifier that amplifies the pulsed light emitted from the optical oscillator to output a high power pulsed light; a pump semiconductor laser that generates a pulsed light for pumping the optical amplifier; a driving unit that drives the pump semiconductor laser by a pulsed driving current synchronized with the master clock signal; and a control unit which controls the driving unit and controls a gain of the optical amplifier for each pulse by changing a pulse width of the pulsed drive current from driving unit so as to change the pulse width of the pumping pulsed light.

First claim

What is claimed is:

1. A high power pulsed light generation device comprising:
a master clock generator that generates a master clock signal;
an optical oscillator that generates a pulsed light synchronized with the master clock signal;
an optical amplifier that amplifies the pulsed light emitted from the optical oscillator to output a high power pulsed light;
a pump semiconductor laser that generates a pulsed light for pumping the optical amplifier;
a driving unit that dr…

Assignees

• Fujikura Ltd

Inventors

• Nakai Michihiro

Classifications

• H01S3/1618

  Electricity · mapped topic

• H01S3/094076 Primary

  Electricity · mapped topic

• H01S5/0428

  Electricity · mapped topic

• H01S3/094026 Primary

  Electricity · mapped topic

• H01S3/06754

  Electricity · mapped topic