Journal of Experimental and Theoretical PhysicsJournal of Experimental and Theoretical Physics0044-45103034-641XRussian Academy of Science10.7868/S3034641X2508005XA SINGLE LASER OPERATED COLD ATOM GRAVIMETERA SINGLE LASER OPERATED COLD ATOM GRAVIMETERBhardwajK.BhardwajK. bhardwaj_k_noemail@ras.ruSinghS.SinghS. singh_s_noemail@ras.ruRamS.P.RamS.P. ram_sp_noemail@ras.ruJainB.JainB. jain_b_noemail@ras.ruKumarV.KumarV. kumar_v_noemail@ras.ruPathakA.PathakA. pathak_a_noemail@ras.ruTiwariS.TiwariS. tiwari_s_noemail@ras.ruTiwariV.B.TiwariV.B. tiwari_vb_noemail@ras.ruMishraS.R.MishraS.R. mishra_sr_noemail@ras.ruLaser Physics Applications Division, Raja Ramanna Centre for Advanced TechnologyLaser Physics Applications Division, Raja Ramanna Centre for Advanced TechnologyLaser Physics Applications Division, Raja Ramanna Centre for Advanced TechnologyLaser Physics Applications Division, Raja Ramanna Centre for Advanced TechnologyLaser Physics Applications Division, Raja Ramanna Centre for Advanced TechnologyLaser Physics Applications Division, Raja Ramanna Centre for Advanced TechnologyLaser Physics Applications Division, Raja Ramanna Centre for Advanced TechnologyLaser Physics Applications Division, Raja Ramanna Centre for Advanced TechnologyLaser Physics Applications Division, Raja Ramanna Centre for Advanced Technology; Homi Bhabha National Institute, Training School ComplexLaser Physics Applications Division, Raja Ramanna Centre for Advanced Technology; Homi Bhabha National Institute, Training School ComplexLaser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced TechnologyLaser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced TechnologyLaser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced TechnologyLaser Controls and Instrumentation Division, Raja Ramanna Centre for Advanced TechnologyLaser Physics Applications Division, Raja Ramanna Centre for Advanced Technology; Homi Bhabha National Institute, Training School ComplexLaser Physics Applications Division, Raja Ramanna Centre for Advanced Technology; Homi Bhabha National Institute, Training School ComplexLaser Physics Applications Division, Raja Ramanna Centre for Advanced Technology; Homi Bhabha National Institute, Training School ComplexLaser Physics Applications Division, Raja Ramanna Centre for Advanced Technology; Homi Bhabha National Institute, Training School Complex010820251682172180

A cold atom gravimeter (CAG) using a single laser system has been developed. In the setup, the laser cooled Rb atoms are launched in the vertical upward direction and Doppler sensitive two-photon Raman pulse atom interferometry is applied to measure the gravitational acceleration g experienced by the atoms. Using our gravimeter setup, we have measured the local value of g in our laboratory with a sensitivity of 621 μGal for integration time of 1350 s. The use of single laser system keeps our CAG setup simple and compact, and does not require the phase-locking of different lasers.

A cold atom gravimeter (CAG) using a single laser system has been developed. In the setup, the laser cooled Rb atoms are launched in the vertical upward direction and Doppler sensitive two-photon Raman pulse atom interferometry is applied to measure the gravitational acceleration g experienced by the atoms. Using our gravimeter setup, we have measured the local value of g in our laboratory with a sensitivity of 621 μGal for integration time of 1350 s. The use of single laser system keeps our CAG setup simple and compact, and does not require the phase-locking of different lasers.

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