Optical arrangement for use in multi-photon laser microscope, has chromatic error correcting device with pulse stretcher, where stretcher is placed in area of beam expansion system and integrated into system

摘要

The arrangement has a laser to emit a beam, and a chromatic error correcting device disposed in a beam path that is emitted by the laser, where the device includes a pulse stretcher (3). The stretcher is arranged in an area of a beam expansion system (4) of the arrangement, and integrated into the system. The system includes positive achromates, each having a respective different focal length.