Laterally coupled distributed feedback type-I quantum well cascade diode lasers emitting near 3.22 μm
Abstract
The laterally coupled distributed feedback (LC-DFB) GaSb-based type-I quantum well cascade diode lasers using the second- and the sixth-order gratings to stabilize the output spectrum near 3.22 μm were designed and fabricated in this paper. The laser heterostructure contained three cascades. The devices were manufactured using a single dry etching step defining the ~5-μm-wide ridge with ~5-μm-wide gratings sections adjacent to the ridge sides. The grating coupling coefficients were estimated to be about 1 cm-1. The stability of the single-frequency operation was ensured by alignment of the DFB mode to the relatively wide gain peak. The 2-mm-long second-order LC-DFB lasers generated above 10 mW of continuous-wave (CW) output power at 20°C in epi-side-up configuration and demonstrated power conversion efficiency above 2%. The sixth-order LC-DFB lasers showed lower efficiency but still generated several milliwatts of CW output power. Finally, the devices demonstrated a CW current tuning range of about 3.5 nm at the temperature of 20°C.
- Authors:
-
- Stony Brook Univ., NY (United States). Electrical and Computer Engineering
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Publication Date:
- Research Org.:
- Stony Brook Univ., NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); US Army Research Office (ARO); China Scholarship Council (CSC)
- OSTI Identifier:
- 1425098
- Alternate Identifier(s):
- OSTI ID: 1399819
- Report Number(s):
- BNL-203316-2018-JAAM
Journal ID: ISSN 1559-128X
- Grant/Contract Number:
- SC0012704; ECCS-1408126; W911NF1110109
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Optics
- Additional Journal Information:
- Journal Volume: 56; Journal Issue: 31; Journal ID: ISSN 1559-128X
- Publisher:
- Optical Society of America
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; infrared and far-infrared lasers; semiconductor lasers; distributed-feedback lasers
Citation Formats
Feng, Tao, Hosoda, Takashi, Shterengas, Leon, Kipshidze, Gela, Stein, Aaron, Lu, Ming, and Belenky, Gregory. Laterally coupled distributed feedback type-I quantum well cascade diode lasers emitting near 3.22 μm. United States: N. p., 2017.
Web. doi:10.1364/AO.56.000H74.
Feng, Tao, Hosoda, Takashi, Shterengas, Leon, Kipshidze, Gela, Stein, Aaron, Lu, Ming, & Belenky, Gregory. Laterally coupled distributed feedback type-I quantum well cascade diode lasers emitting near 3.22 μm. United States. https://doi.org/10.1364/AO.56.000H74
Feng, Tao, Hosoda, Takashi, Shterengas, Leon, Kipshidze, Gela, Stein, Aaron, Lu, Ming, and Belenky, Gregory. Wed .
"Laterally coupled distributed feedback type-I quantum well cascade diode lasers emitting near 3.22 μm". United States. https://doi.org/10.1364/AO.56.000H74. https://www.osti.gov/servlets/purl/1425098.
@article{osti_1425098,
title = {Laterally coupled distributed feedback type-I quantum well cascade diode lasers emitting near 3.22 μm},
author = {Feng, Tao and Hosoda, Takashi and Shterengas, Leon and Kipshidze, Gela and Stein, Aaron and Lu, Ming and Belenky, Gregory},
abstractNote = {The laterally coupled distributed feedback (LC-DFB) GaSb-based type-I quantum well cascade diode lasers using the second- and the sixth-order gratings to stabilize the output spectrum near 3.22 μm were designed and fabricated in this paper. The laser heterostructure contained three cascades. The devices were manufactured using a single dry etching step defining the ~5-μm-wide ridge with ~5-μm-wide gratings sections adjacent to the ridge sides. The grating coupling coefficients were estimated to be about 1 cm-1. The stability of the single-frequency operation was ensured by alignment of the DFB mode to the relatively wide gain peak. The 2-mm-long second-order LC-DFB lasers generated above 10 mW of continuous-wave (CW) output power at 20°C in epi-side-up configuration and demonstrated power conversion efficiency above 2%. The sixth-order LC-DFB lasers showed lower efficiency but still generated several milliwatts of CW output power. Finally, the devices demonstrated a CW current tuning range of about 3.5 nm at the temperature of 20°C.},
doi = {10.1364/AO.56.000H74},
journal = {Applied Optics},
number = 31,
volume = 56,
place = {United States},
year = {Wed Oct 18 00:00:00 EDT 2017},
month = {Wed Oct 18 00:00:00 EDT 2017}
}
Web of Science
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