title: On-chip high sensitivity laser frequency sensing with Brillouin mutually-modulated cross-gain modulation.
abstract: 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.
authors.affiliation: Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), Institute of Photonics and Optical Science (IPOS), School of Physics, The University of Sydney, New South Wales 2006, Australia. fenggao@nankai.edu.cn
authors.forename: Feng
authors.initials: F
authors.lastname: Gao
authors.forename: Ravi
authors.initials: R
authors.lastname: Pant
authors.forename: Enbang
authors.initials: E
authors.lastname: Li
authors.forename: Christopher G
authors.initials: CG
authors.lastname: Poulton
authors.forename: Duk-Yong
authors.initials: DY
authors.lastname: Choi
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Madden
authors.forename: Barry
authors.initials: B
authors.lastname: Luther-Davies
authors.forename: Benjamin J
authors.initials: BJ
authors.lastname: Eggleton
mesh_terms: D018011:Chalcogens / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D012031:Refractometry / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*
chemical_list: D018011:Chalcogens