On-chip High Sensitivity Laser Frequency Sensing With Brillouin Mutually-modulated Cross-gain Modulation

Optical Soc Amer
Publication Type:
Journal Article
Optics Express, 2013, 21 (7), pp. 8605 - 8613
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We report the first demonstration of a photonic-chip laser frequency sensor using Brillouin mutually-modulated cross-gain modulation (MMXGM). A large sensitivity (~9.5 mrad/kHz) of the modulation phase shift to probe carrier frequency is demonstrated at a modulation frequency of 50 kHz using Brillouin MMXGM in a ~7 cm long chalcogenide rib waveguide
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