Abstract
We present the recent development of high performance compact frequency comb sources based on mid-infrared quantum cascade lasers. Significant performance improvements of our frequency combs with respect to the continuous wave power output, spectral bandwidth, and beatnote linewidth are achieved by systematic optimization of the device's active region, group velocity dispersion, and waveguide design. To date, we have demonstrated the most efficient, high power frequency comb operation from a free-running room temperature continuous wave (RT CW) dispersion engineered QCL atλ ∼5-9μm. In terms of bandwidth, the comb covered a broad spectral range of 120 cm -1 with a radio-frequency intermode beatnote spectral linewidth of 40 Hz and a total power output of 880 mW at 8 μm and 1 W at λ∼5.0μm. The developing characteristics show the potential for fast detection of various gas molecules. Furthermore, THz comb sources based on difference frequency generation in a mid-IR QCL combs could be potentially developed.
| Original language | English (US) |
|---|---|
| Title of host publication | Terahertz Emitters, Receivers, and Applications IX |
| Editors | Alexei N. Baranov, Manijeh Razeghi |
| Publisher | SPIE |
| ISBN (Electronic) | 9781510620834 |
| DOIs | |
| State | Published - Jan 1 2018 |
| Event | Terahertz Emitters, Receivers, and Applications IX 2018 - San Diego, United States Duration: Aug 19 2018 → Aug 20 2018 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 10756 |
| ISSN (Print) | 0277-786X |
| ISSN (Electronic) | 1996-756X |
Conference
| Conference | Terahertz Emitters, Receivers, and Applications IX 2018 |
|---|---|
| Country | United States |
| City | San Diego |
| Period | 8/19/18 → 8/20/18 |
Fingerprint
Keywords
- four-wave mixing
- frequency comb
- group velocity dispersion
- quantum cascade lasers
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
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Review of high power frequency comb sources based on InP : From MIR to THz at CQD. / Razeghi, Manijeh; Lu, Quanyong; Wu, Donghai; Slivken, Steven Boyd.
Terahertz Emitters, Receivers, and Applications IX. ed. / Alexei N. Baranov; Manijeh Razeghi. SPIE, 2018. 107560I (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10756).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Review of high power frequency comb sources based on InP
T2 - From MIR to THz at CQD
AU - Razeghi, Manijeh
AU - Lu, Quanyong
AU - Wu, Donghai
AU - Slivken, Steven Boyd
PY - 2018/1/1
Y1 - 2018/1/1
N2 - We present the recent development of high performance compact frequency comb sources based on mid-infrared quantum cascade lasers. Significant performance improvements of our frequency combs with respect to the continuous wave power output, spectral bandwidth, and beatnote linewidth are achieved by systematic optimization of the device's active region, group velocity dispersion, and waveguide design. To date, we have demonstrated the most efficient, high power frequency comb operation from a free-running room temperature continuous wave (RT CW) dispersion engineered QCL atλ ∼5-9μm. In terms of bandwidth, the comb covered a broad spectral range of 120 cm -1 with a radio-frequency intermode beatnote spectral linewidth of 40 Hz and a total power output of 880 mW at 8 μm and 1 W at λ∼5.0μm. The developing characteristics show the potential for fast detection of various gas molecules. Furthermore, THz comb sources based on difference frequency generation in a mid-IR QCL combs could be potentially developed.
AB - We present the recent development of high performance compact frequency comb sources based on mid-infrared quantum cascade lasers. Significant performance improvements of our frequency combs with respect to the continuous wave power output, spectral bandwidth, and beatnote linewidth are achieved by systematic optimization of the device's active region, group velocity dispersion, and waveguide design. To date, we have demonstrated the most efficient, high power frequency comb operation from a free-running room temperature continuous wave (RT CW) dispersion engineered QCL atλ ∼5-9μm. In terms of bandwidth, the comb covered a broad spectral range of 120 cm -1 with a radio-frequency intermode beatnote spectral linewidth of 40 Hz and a total power output of 880 mW at 8 μm and 1 W at λ∼5.0μm. The developing characteristics show the potential for fast detection of various gas molecules. Furthermore, THz comb sources based on difference frequency generation in a mid-IR QCL combs could be potentially developed.
KW - four-wave mixing
KW - frequency comb
KW - group velocity dispersion
KW - quantum cascade lasers
UR - http://www.scopus.com/inward/record.url?scp=85062280491&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85062280491&partnerID=8YFLogxK
U2 - 10.1117/12.2326358
DO - 10.1117/12.2326358
M3 - Conference contribution
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Terahertz Emitters, Receivers, and Applications IX
A2 - Baranov, Alexei N.
A2 - Razeghi, Manijeh
PB - SPIE
ER -