Sample Grating Distributed Feedback Quantum Cascade Laser Array
نویسندگان
چکیده
منابع مشابه
Sample Grating Distributed Feedback Quantum Cascade Laser Array
A sample grating distributed feedback quantum cascade laser array aim at broad tunability and enhanced side mode suppression ratios is presented. Utilizing a sample grating dependence on emission wavelength and epitaxial side down bonding technique, the array of laser ridges exhibited three separated single mode emissions centered at 4.760, 4.721, and 4.711 μm respectively, in continuous wave a...
متن کاملBroadband Distributed-Feedback Quantum Cascade Laser Array Operating From 8.0 to 9.8 m
An ultra-broadband distributed-feedback quantum cascade laser array was fabricated, using a heterogeneous cascade based on two bound-to-continuum designs centered at 8.4 and 9.6 m. This array emitted in a range over 220 cm near a 9m wavelength, operated in pulsed mode at room temperature. The output power of the array varied between 100and 1100-mW peak intensity.
متن کاملMulti-channel terahertz grating spectrometer with quantum-cascade laser and microbolometer array
and microbolometer array R. Eichholz, H. Richter, S. G. Pavlov, M. Wienold, L. Schrottke, R. Hey, H. T. Grahn, and H.-W. Hübers Institute of Planetary Research, German Aerospace Center (DLR), Rutherfordstr. 2, 12489 Berlin, Germany Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5–7, 10117 Berlin, Germany Institut für Optik und Atomare Physik, Technische Universität Berlin, Harden...
متن کاملDegradation analysis in asymmetric sampled grating distributed feedback laser diodes
This paper presents the experimental observation of the degradation in asymmetric sampled grating DFB lasers by the accelerated life tests. Two degradation phenomena related to the electrical characteristics of LDs are observed during the tests. The first degradation phenomenon by increasing the reverse current is considered as a formation of leakage current path enough to prevent lasing operat...
متن کاملSensitive absorption spectroscopy with a room-temperature distributed-feedback quantum-cascade laser.
We report what we believe are the first spectroscopic measurements to be made with a room-temperature quantum-cascade distributed-feedback laser. Using wavelength modulation spectroscopy, we detected N(2)O and CH(4) in the chemical fingerprint wavelength range near 8microm . The noise equivalent absorbance for our measurement was 5 parts in 10(5), limited by excess amplitude modulation on the l...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nanoscale Research Letters
سال: 2015
ISSN: 1931-7573,1556-276X
DOI: 10.1186/s11671-015-1115-9