TY - JOUR AU - Scott Diddams AU - L. Hollberg AU - L.-S. Ma AU - Lennart Robertsson BT - Optics Letters DA - Jan-01-2002 DO - 10.1364/OL.27.000058 PY - 2002 EP - 58 T2 - Optics Letters TI - Femtosecond-laser-based optical clockwork with instability<= less than or equal to 6.3 X 10-16 in 1 s UR - http://www.opticsinfobase.org/abstract.cfm?URI=ol-27-1-58 VL - 27 SN - 0146-9592 ER -