Yes. Red and near-infrared light therapy (photobiomodulation) is well studied in dogs.
In a 2018 placebo-controlled trial in the Canadian Veterinary Journal, dogs with elbow osteoarthritis showed improved lameness and pain, and most were able to reduce their NSAID dose.
A 2022 double-blinded trial in the American Journal of Veterinary Research found it reduced pain and improved mobility in dogs with hip osteoarthritis, with relief that often lasted longer than medication.
It is the same type of therapy many vet clinics use in-clinic
More published research:
Looney et al. 2018 (elbow osteoarthritis): improved lameness and pain, lower NSAID need.
Alves et al. 2022 (hip osteoarthritis): less pain and better mobility, lasting up to 90 days.
Draper et al. 2012 (IVDD / post-surgery): dogs walked again in 3.5 days vs 14 days with surgery alone.
Mississippi State University (post-surgery): faster surgical incision healing in IVDD patients.