bids are invited for nir optical components and mounting accessories linear polarizer , non polarizing beam splitter cube , polarizing beam splitter cube , achromatic half wave plate , achromatic quarter wave plate , fiber optic collimator , achromatic fiber coupler , fixed neutral density filter od 0 point 5 , fixed neutral density filter od 1 , fixed neutral density filter od 2 , fixed neutral density filter od 4 , fixed neutral density filter od 5 , variable neutral density filter , platform mount for beam splitter cube , kinematic platform mounts for beam splitter cube , rotation mount , post rod , pedestal post holder , clamping fork for post holder total quantity : 671