Using a bi-frequency pumped Raman amplifier in a Rb vapor cell, we demonstrate experimentally the condition for achieving a null group index, necessary for fast-light enhanced rotation sensing in a passive cavity Sagnac gyroscope.
© 2006 Optical Society of America
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.5790) Instrumentation, measurement, and metrology : Sagnac effect
(190.0190) Nonlinear optics : Nonlinear optics
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
G. Pati, R. Tripathi, M. Messal, V. Gopal, K. Salit, and S. M. Shahriar, "Controllable Anomalous Dispersion and Group Index Nulling via Bi-Frequency Raman Gain for Ultraprecision Rotation Sensing," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper QTuE5.
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