Single-mode interband cascade lasers emitting below 2.8 μm

Julian Scheuermann; Robert Weih; Michael von Edlinger; Lars Naehle; Marc Fischer; Johannes Koeth; Martin Kamp; Sven Hoefling

doi:10.1063/1.4918985

Single-mode interband cascade lasers emitting below 2.8 μm

Julian Scheuermann^*, Robert Weih, Michael von Edlinger, Lars Naehle, Marc Fischer, Johannes Koeth, Martin Kamp, Sven Hoefling

^*Corresponding author for this work

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Abstract

In this work, single-mode distributed feedback (DFB) interband cascade laser (ICL) devices with record short wavelength emission below 2.8 μm are presented. Pulsed measurements based on broad area laser devices with a cavity of 2 mm length and 150 μm width showed threshold current densities of 383 A/cm² at T = 20 °C and a characteristic temperature T₀ of 67 K. Fabricated DFB devices were operated in continuous wave mode at room temperature, with threshold currents of 57 mA and demonstrated side mode suppression ratios of larger than 25 dB. The devices showed current tuning ranges of 7 nm and total (including drive current and temperature) tuning ranges of 12 nm, with respective tuning rates of 21 nm/W, 0.13 nm/mA and 0.29 nm/K. Using the full spectral gain bandwidth of the underlying ICL material, single-mode DFB emission was observed within a wavelength range of 150 nm utilizing different DFB grating periods.

Original language	English
Article number	161103
Number of pages	4
Journal	Applied Physics Letters
Volume	106
Issue number	16
DOIs	https://doi.org/10.1063/1.4918985
Publication status	Published - 20 Apr 2015

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Hofling_2015_APL_Single
Copyright 2015 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in: Scheuermann, J., Weih, R., von Edlinger, M., Naehle, L., Fischer, M., Koeth, J., Kamp, M., & Hoefling, S. (2015). Single-mode interband cascade lasers emitting below 2.8 μm. Applied Physics Letters, 106(16), [161103], and may be found at http://dx.doi.org/10.1063/1.4918985
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title = "Single-mode interband cascade lasers emitting below 2.8 μm",

abstract = "In this work, single-mode distributed feedback (DFB) interband cascade laser (ICL) devices with record short wavelength emission below 2.8 μm are presented. Pulsed measurements based on broad area laser devices with a cavity of 2 mm length and 150 μm width showed threshold current densities of 383 A/cm2 at T = 20 °C and a characteristic temperature T0 of 67 K. Fabricated DFB devices were operated in continuous wave mode at room temperature, with threshold currents of 57 mA and demonstrated side mode suppression ratios of larger than 25 dB. The devices showed current tuning ranges of 7 nm and total (including drive current and temperature) tuning ranges of 12 nm, with respective tuning rates of 21 nm/W, 0.13 nm/mA and 0.29 nm/K. Using the full spectral gain bandwidth of the underlying ICL material, single-mode DFB emission was observed within a wavelength range of 150 nm utilizing different DFB grating periods.",

author = "Julian Scheuermann and Robert Weih and {von Edlinger}, Michael and Lars Naehle and Marc Fischer and Johannes Koeth and Martin Kamp and Sven Hoefling",

note = "Financial support by the European Commission within the WideLase Seventh Framework Programme Project (Grant Agreement No.: 318798) is gratefully acknowledged. ",

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AU - Scheuermann, Julian

AU - Weih, Robert

AU - von Edlinger, Michael

AU - Naehle, Lars

AU - Fischer, Marc

AU - Koeth, Johannes

AU - Kamp, Martin

AU - Hoefling, Sven

N1 - Financial support by the European Commission within the WideLase Seventh Framework Programme Project (Grant Agreement No.: 318798) is gratefully acknowledged.

PY - 2015/4/20

Y1 - 2015/4/20

N2 - In this work, single-mode distributed feedback (DFB) interband cascade laser (ICL) devices with record short wavelength emission below 2.8 μm are presented. Pulsed measurements based on broad area laser devices with a cavity of 2 mm length and 150 μm width showed threshold current densities of 383 A/cm2 at T = 20 °C and a characteristic temperature T0 of 67 K. Fabricated DFB devices were operated in continuous wave mode at room temperature, with threshold currents of 57 mA and demonstrated side mode suppression ratios of larger than 25 dB. The devices showed current tuning ranges of 7 nm and total (including drive current and temperature) tuning ranges of 12 nm, with respective tuning rates of 21 nm/W, 0.13 nm/mA and 0.29 nm/K. Using the full spectral gain bandwidth of the underlying ICL material, single-mode DFB emission was observed within a wavelength range of 150 nm utilizing different DFB grating periods.

AB - In this work, single-mode distributed feedback (DFB) interband cascade laser (ICL) devices with record short wavelength emission below 2.8 μm are presented. Pulsed measurements based on broad area laser devices with a cavity of 2 mm length and 150 μm width showed threshold current densities of 383 A/cm2 at T = 20 °C and a characteristic temperature T0 of 67 K. Fabricated DFB devices were operated in continuous wave mode at room temperature, with threshold currents of 57 mA and demonstrated side mode suppression ratios of larger than 25 dB. The devices showed current tuning ranges of 7 nm and total (including drive current and temperature) tuning ranges of 12 nm, with respective tuning rates of 21 nm/W, 0.13 nm/mA and 0.29 nm/K. Using the full spectral gain bandwidth of the underlying ICL material, single-mode DFB emission was observed within a wavelength range of 150 nm utilizing different DFB grating periods.

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DO - 10.1063/1.4918985

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SN - 0003-6951

VL - 106

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Single-mode interband cascade lasers emitting below 2.8 μm

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