Plural form of the acronym LASER
Solution 1:
The acronym LASER describes a process, not equipment. Modern usage is lasing for the process, and laser has become an ordinary noun. So for multiple devices operating on the LASER principle: "lasers" or "LASERs". Preferably the first, without all caps.
Solution 2:
- LASER is now almost universally spelled as a “normal” word and not as an acronym, as laser.
- Both acronyms and ordinary words are pluralized by adding s or es. The plural of LASER would be LASERs. The plural of laser is lasers.
Solution 3:
"Laser" has long since entered the lexicon as a regular word instead of an acronym. True, it originally was an acronym for L ight A mplification by the S timulated E mission of R adiation, but that has gone the way of the horse and buggy since at least the 1970s.
The plural of "laser" is "lasers".