title: Wide temperature range 0 < T < 85 °C narrow linewidth discrete mode laser diodes for coherent communications applications.
abstract: Cost effective lasers meeting the linewidth requirements for coherent communication systems are a key element in reducing the overall cost of future coherent systems. We report on monolithic devices with linewidths as low as 138 kHz which operate in a narrow linewidth, single wavelength mode with high sidemode suppression ratio over a wide temperature tuning range of -10 °C < T < 110 °C. A linewidth variation of only 23 kHz was measured at a constant emitted power of 4 mW as the device temperature is varied in the range 0 °C < T < 85 °C.
authors.affiliation: Eblana Photonics Ltd, Unit 32, Trinity Enterprise Centre, Dublin 2, Ireland. john.ocarroll@eblanaphotonics.com
authors.forename: John
authors.initials: J
authors.lastname: O'Carroll
authors.forename: Richard
authors.initials: R
authors.lastname: Phelan
authors.forename: Brian
authors.initials: B
authors.lastname: Kelly
authors.forename: Diarmuid
authors.initials: D
authors.lastname: Byrne
authors.forename: Liam P
authors.initials: LP
authors.lastname: Barry
authors.forename: James
authors.initials: J
authors.lastname: O'Gorman