| 摘要 |
A system and method for combining a predetermined number of laser beams. The system ( 30 ) includes a collimating lens ( 34 ) for receiving and collimating the laser beams and a holographic device ( 36 ) positioned to receive beams from the collimating lens ( 34 ) and output beams which are co-aligned. The holographic device ( 36 ) includes a predetermined number of holographic optical elements ( 46, 48, 50 ), wherein each holographic optical element ( 46, 48, 50 ) is designed for a particular wavelength of the laser beams. In the preferred embodiment, the holographic optical elements are volume holograms, and the system further includes a blazed grating ( 38 ) positioned between the collimating lens ( 34 ) and the holographic device ( 36 ) to account for variations in the wavelengths of the laser beams due to environmental conditions.
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