Patent ID: 7961771

Claim:
A laser amplifier comprising: a diode bar having a plurality of semiconductors for providing a source of pump power; a block of laser active material disposed adjacent said diode bar for receiving said pump power and generating a gain sheet therein, said block of laser active material having first and second lateral faces, an optical coating disposed on both said first lateral face and said second lateral face, said optical coating highly transmitting at a wavelength of the pump power; a first side mirror disposed between said diode bar and said first lateral face, said first side mirror having an optical coating highly transmitting at pump power wavelength and highly reflecting at a lasing wavelength; a microlens disposed between said diode bar and said first side mirror, said microlens functioning to direct pump power from said diode bar, through said first side mirror, into said block of laser active material to effect generation of said gain sheet and; a second side mirror disposed adjacent said second lateral face, said second side mirror having an optical coating highly reflecting at a lasing wavelength, said second side mirror further forming a dihedral wedge angle with said first side mirror.