[1] https://wccftech.com/starlink-turns-on-laser-satellites-for-region-with-fourth-month-long-night/ https://wccftech.com/starlink-turns-on-laser-satellites-for

[1] https://wccftech.com/starlink-turns-on-laser-satellites-for-region-with-fourth-month-long-night/ https://wccftech.com/starlink-turns-on-laser-satellites-for-... Judging from [1], lasers are used not for inter-satellite links, but for downstream or upstream links - from satellites to the ground. Intersatellite links require precise machinery, such as picometer-precise positioning systems [2]. [2] https://www.pi-usa.us/fileadmin/user_upload/pi_us/files/product_datasheets/P363_Pico-Positioning_Piezo_Stage.pdf https://www.pi-usa.us/fileadmin/user_upload/pi_us/files/prod... Also, there should be compensation for satellite rotation, initial targeting and tracking. At ~12km between satellites (~4000 on 550 km orbit), the (possible) target of laser signal receiver which, say, is one meter in diameter will be one third of an angular minute. It is not impossible to target that initially, but keep in mind that laser beam is very focused and its power drops significantly with the angular distance. I really do not know how to even target satellites' receivers initially, let alone compensate for rotation and track these targets afterwards.