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Title: Distributed feedback interband cascade lasers with top grating and corrugated sidewalls

Abstract

Distributed feedback (DFB) interband cascade lasers (ICLs) with a 1st order top surface grating were designed and fabricated. Partially corrugated sidewalls were implemented to suppress high order lateral modes. The DFB ICLs have 4 mm long and 4.5 mu m wide ridge waveguides and are mounted epi-up on AlN submounts. We demonstrated a continuous-wave (CW) DFB ICL, from a first wafer which has a large detuning of the gain peak from the DFB wavelength, with a side mode suppression ratio of 30 dB. With proper matching of grating feedback and the gain peak wavelength for the second wafer, a DFB ICL was demonstrated with a maximum CW output power and a maximum wall plug efficiency reaching 42 mW and 2%, respectively, at 25 degrees C. The lasing wavelengths of both lasers are around 3.3 mu m at 25 degrees C. Published by AIP Publishing.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2]; ORCiD logo [1]
  1. Thorlabs Quantum Electronics, 10335 Guilford Rd, Jessup, Maryland 20794, USA
  2. Center for Nanoscale Materials, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, USA
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1434328
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 112; Journal Issue: 13
Country of Publication:
United States
Language:
English

Citation Formats

Xie, Feng, Stocker, Michael, Pham, John, Towner, Frederick, Shen, Kun, Wang, Jie, and Lascola, Kevin. Distributed feedback interband cascade lasers with top grating and corrugated sidewalls. United States: N. p., 2018. Web. doi:10.1063/1.5009741.
Xie, Feng, Stocker, Michael, Pham, John, Towner, Frederick, Shen, Kun, Wang, Jie, & Lascola, Kevin. Distributed feedback interband cascade lasers with top grating and corrugated sidewalls. United States. doi:10.1063/1.5009741.
Xie, Feng, Stocker, Michael, Pham, John, Towner, Frederick, Shen, Kun, Wang, Jie, and Lascola, Kevin. Mon . "Distributed feedback interband cascade lasers with top grating and corrugated sidewalls". United States. doi:10.1063/1.5009741.
@article{osti_1434328,
title = {Distributed feedback interband cascade lasers with top grating and corrugated sidewalls},
author = {Xie, Feng and Stocker, Michael and Pham, John and Towner, Frederick and Shen, Kun and Wang, Jie and Lascola, Kevin},
abstractNote = {Distributed feedback (DFB) interband cascade lasers (ICLs) with a 1st order top surface grating were designed and fabricated. Partially corrugated sidewalls were implemented to suppress high order lateral modes. The DFB ICLs have 4 mm long and 4.5 mu m wide ridge waveguides and are mounted epi-up on AlN submounts. We demonstrated a continuous-wave (CW) DFB ICL, from a first wafer which has a large detuning of the gain peak from the DFB wavelength, with a side mode suppression ratio of 30 dB. With proper matching of grating feedback and the gain peak wavelength for the second wafer, a DFB ICL was demonstrated with a maximum CW output power and a maximum wall plug efficiency reaching 42 mW and 2%, respectively, at 25 degrees C. The lasing wavelengths of both lasers are around 3.3 mu m at 25 degrees C. Published by AIP Publishing.},
doi = {10.1063/1.5009741},
journal = {Applied Physics Letters},
number = 13,
volume = 112,
place = {United States},
year = {Mon Mar 26 00:00:00 EDT 2018},
month = {Mon Mar 26 00:00:00 EDT 2018}
}