Abstract
The use of quantum cascade (QC) lasers was investigated for its application in trace-gas sensing. Single-mode operation was achieved through integration of a Bragg grating into the laser waveguide which produces distributed feedback (DFB) lasers. The results show that the characteristic total tuning ranges per current sweep ranges between 0.3% to 0.5% of the emission wavelength which makes it suitable for scanning isolated absorption features of a trace gas.
Original language | English (US) |
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Pages | 65-70 |
Number of pages | 6 |
Volume | 37 |
No | 9 |
Specialist publication | Laser Focus World |
State | Published - Sep 2001 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Marketing
- Electrical and Electronic Engineering