title: Single mode thermal emission.
abstract: We report on the properties of a thermal emitter which radiates into a single mode waveguide. We show that the maximal power of thermal radiation into a propagating single mode is limited only by the temperature of the thermal emitter and does not depend on other parameters of the waveguide. Furthermore, we show that the power of the thermal emitter cannot be increased by resonant coupling. For a given temperature, the enhancement of the total emitted power is only possible if the number of excited modes is increased. Either a narrowband or a broadband thermal excitation of the mode is possible, depending on the properties of the emitter. We finally discuss an example system, namely a thermal source for silicon photonics.
authors.forename: Lena Simone
authors.initials: LS
authors.lastname: Fohrmann
authors.forename: Alexander Yu
authors.initials: AY
authors.lastname: Petrov
authors.forename: Slawa
authors.initials: S
authors.lastname: Lang
authors.forename: Dirk
authors.initials: D
authors.lastname: Jalas
authors.forename: Thomas F
authors.initials: TF
authors.lastname: Krauss
authors.forename: Manfred
authors.initials: M
authors.lastname: Eich