bids are invited for non polarizing beam splitter , polarizing beam splitter , mirrors , mirror mounts , optical post , post holders , swivel base adapter , adapters with threads , set screw and hardware kit , half-wave plate , quarter-wave plate , rotation mount for 1 diameter optics , linear polarizer , iris mounted on pedestal post , neutral density filter , polarization maintaining fc apc fiber optic patch cables ,graded index multimode fiber with patch cables , collimatorcoupler , dichroic mirrors , avalanche photodetectors , 4channel fiber coupled laser source , laser safety glasses ,laser safety curtain panels , laser safety fabric , ir card ,fiber optic cleaning kit total quantity : 89