Are these compatible with the hp 3810m (jl075a)?

No, due to the exclusiveness of HPP system towards non HPP system products, we must modify the EEPROM information to realize product compatibility. So we recommend that you purchase HPP compatible modules through https://store.10gtek.com/10gbase-sr-sfp-transceiver-10g-850nm-mmf-up-to-300-meters-hp/p-12197