Ko tēnei raupapa o ngā Beam Combiners he mea hanga ki te BK7 (H-K9L) me te Fused Silica rānei. Ka hanumihia e ia ngā hihi e rua ki te kotahi, ahakoa he hihi-whero, he hihi e kitea ana, he hihi-whero tata rānei; ka taea e ngā kaiwhakamahi te whakaranu i te mārama e kore e kitea me te mārama e kitea ana me tētahi huarahi ngāwari ki te whakahāngai.
E 20 tau te roangaru e arotahi ana ki te whakarato i ngā hua whatu tino tika.