title: Tunable single-mode coupled-cavity laser in a standard InP photonics platform.
abstract: We present a wavelength tunable, coupled-cavity laser in a standard indium phosphide multiproject wafer shuttle which did not support distributed feedback gratings. The single-mode operation was enabled by reflections from slots in the laser cavity. The wavelength of the laser emission was tunable over 20 nm near a wavelength of 1560 nm via the currents applied to each section of the laser. A maximum side-mode suppression ratio of 46 dB was observed. The delayed self-heterodyne spectrum of the laser showed a Voigt line shape, corresponding to optical linewidths of 3.7 MHz for the Lorentzian and 88 MHz for the Gaussian contributions.
authors.forename: Wesley D
authors.initials: WD
authors.lastname: Sacher
authors.forename: Emil
authors.initials: E
authors.lastname: Kleijn
authors.forename: Benjamin J F
authors.initials: BJ
authors.lastname: Taylor
authors.forename: Hasitha
authors.initials: H
authors.lastname: Jayatilleka
authors.forename: Luc M
authors.initials: LM
authors.lastname: Augustin
authors.forename: Joyce K S
authors.initials: JK
authors.lastname: Poon