remote active laser with adaptation to the size of the target being hit;
duplicate contact fuse-self-destruct;
fuses are cocked at a distance of 150-300 m from the carrier aircraft and ensure maximum damage to the target by elements of the warhead;
The option is a classic remote radar fuse.
As far as i know R-77-1 comes by defacto with laser fuse , only R-77 was initially proposed with radar fuse ( frontal section is completely smooth ) so the absence of laser fuse from those under central pylons of the 30SM indicates they are R-77.
As ZVO mentioned R-77 did also come with laser fuse so if all missiles had laser fuse the only reliable differentiating factor would be to look at the fairing around the grid fins.