ISSN:
1432-0649
Keywords:
PACS: 42.80
;
42.55 M
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract. Frequency coupling between the counterpropagating pulses inside a femtosecond ring laser gyroscope is studied. It is shown that frequency lock-in results from the counterpropagating pulses overlapping at or near a scattering surface. Nonetheless, the absence of lock-in with a scatterer at the pulse crossing point is demonstrated for the special case of symmetric scattering. The decoupling of the counterpropagating pulses makes possible the measurement of non-reciprocal phase differences of 10-5 and index differences of 10-10 over 1 cm. Besides measuring rotations, applications are found in the measurement of small changes in the index of refraction, and electrical transients on the 100 fs time scale.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01828943
Permalink
