title: Realization of pure frequency modulation of DFB laser via combined optical and electrical tuning.
abstract: In this paper we present a novel approach to convert AM signal into FM signal in semiconductor lasers via off resonance optical pumping and report on experimental results obtained with a commercial DFB laser. Aside of demonstrating discrete and fast frequency modulation, we achieve pure frequency modulation through combination with electrical modulation suppressing the associated amplitude modulation, which is detrimental to application such as spectroscopy and communication.
authors.affiliation: Department of Physics and Engineering Physics, Stevens Institute of Technology, Castle Point on Hudson, Hoboken New Jersey 07030-5991, USA. ctian@stevens.edu
authors.forename: Chao
authors.initials: C
authors.lastname: Tian
authors.forename: I-Chun Anderson
authors.initials: IC
authors.lastname: Chen
authors.forename: Seong-Wook
authors.initials: SW
authors.lastname: Park
authors.forename: Rainer
authors.initials: R
authors.lastname: Martini
mesh_terms: D004581:Electronics / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D013685:Telecommunications / Q000295:instrumentation*