Analysis of surface-emitting thin-film superluminescent diodes with high efficiency
Jentzsch B, Gomez-Iglesias A, Tonkikh A, Witzigmann B (2019)
Publication Type: Conference contribution
Publication year: 2019
Journal
Publisher: SPIE
Book Volume: 11031
Conference Proceedings Title: Proceedings of SPIE - The International Society for Optical Engineering
Event location: Prague
ISBN: 9781510627284
DOI: 10.1117/12.2519731
Abstract
In this paper, a novel surface-emitting superluminescent diode fabricated by applying full on-wafer processing is presented. The surface-emission is achieved via mirrors etched by using an inductively coupled plasma process. This geometry allows to deflect in-plane guided and amplified optical modes perpendicular to the chip surface. The out-coupling window is anti-reflection coated, while at the other end of the waveguide a high-reflecting coating was deposited. In this way the device uses double-pass amplification, increasing efficiency, and light is emitted from a single spot. The light propagation and out-coupling in the proposed concept are first theoretically analyzed. Moreover, in order to simulate the optical output power, a rate equation-based frequency-resolved model accounting for non-ideal facet reflectivities and lasing onset is introduced. Finally, the measured L-I and spectral characteristics of fabricated InGaAs/GaAs superluminescent diodes emitting at a peak wavelength of 960nm are presented and compared to simulation results. At room temperature, pulsed output powers up to ∼125mW with a FWHM of 14nm and a wall-plug efficiency higher than 10% were achieved.
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Germany (DE)How to cite
APA:
Jentzsch, B., Gomez-Iglesias, A., Tonkikh, A., & Witzigmann, B. (2019). Analysis of surface-emitting thin-film superluminescent diodes with high efficiency. In Pavel Cheben, Jiri Ctyroky, Inigo Molina-Fernandez (Eds.), Proceedings of SPIE - The International Society for Optical Engineering. Prague, CZ: SPIE.
MLA:
Jentzsch, Bruno, et al. "Analysis of surface-emitting thin-film superluminescent diodes with high efficiency." Proceedings of the Integrated Optics: Design, Devices, Systems, and Applications V 2019, Prague Ed. Pavel Cheben, Jiri Ctyroky, Inigo Molina-Fernandez, SPIE, 2019.
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