Abstract: Methods and systems for laser diode ignition of field cannons and weaponry. A series of one or more laser diodes or laser diode array, bars or stripes that are configured to optically pump a collimator which may be formed of materials to provide a lasing medium. The energy output of these devices can be combined when configured as an array or a series of redundant laser diodes assemblies to provide safe and reliable ignition systems. The collimator may direct the output from these laser diode assemblies as multiple collimated ignition beams. The laser diode assemblies may optically end pump and/or side pump the collimator or collimating rod to deliver a more directed energy output to artillery propellant. Additionally, the duration of the pulses may be controlled and extended as necessary to help ensure proper ignition of the propellant.

Abstract: A flashlamp pumped laser is controlled to emit a series of narrow pulse width laser pulses in quick succession. A control circuit associated with the flashlamp receives firing signals of limited pulse duration and serves to ignite and extinguish the flashlamp in accordance with the leading and trailing edges of a single firing signal pulse. The laser generates a coherent light pulse corresponding to the pumping flashlamp pulse. The flashlamp control circuit includes a main capacitor which stores electric charge sufficient to provide current to the flashlamp for several pulses in succession. The circuit also includes a trigger capacitor which supplies current through a transformer coupled to the flashlamp to initiate current conduction therein.