We show a new scheme of nonperturbative pair production by high energy photons ( \omega \gtrsim m ) in a strong external field is achievable at the next high intensity laser experiments . The pair momentum is boosted and for \omega \gtrsim 1.2 m the pair yield is increased when the external field is formed by two laser pulses converging at a small angle . These characteristics are nonperturbative in origin and related to the presence of magnetic field in addition to electric field . By enhancing the signal over perturbative backgrounds , these features allow the employment of above-threshold photons \omega > 2 m , which further increases the pair yield . We note the close relation of this photon-pair conversion mechanism to spontaneous pair creation , recommending it as an accessible stepping stone experiment using state-of-the-art or soon-to-be laser technology .