Narrow-line InGaN/GaN green laser diode with high-order distributed-feedback surface grating
نویسندگان
چکیده
منابع مشابه
Grating Feedback in a 810 nm Broad-Area Diode Laser
Narrow linewidth, single spectral mode operation has been obtained in a high power, 810 nm broad-area diode laser in an extended cavity configuration with a grating as external reflector (grating feedback). For stable operation it was necessary to misalign the feedback slightly in the plane of the laser junction. Characteristics of the thus obtained laser system are a linewidth below 5 MHz, an ...
متن کاملHigh-Q Distributed-Bragg-Grating Laser Cavities
Applying Bragg gratings in Al2O3 channel waveguides, we demonstrate distributed Bragg reflectors with Qfactors of 1.0210 6 . An integrated Al2O3:Yb 3+ waveguide laser with 67% slope efficiency and 47 mW output power is achieved with such cavities.
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 کاملSample 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 کاملNarrow-band generation in random distributed feedback fiber laser.
Narrow-band emission of spectral width down to ~0.05 nm line-width is achieved in the random distributed feedback fiber laser employing narrow-band fiber Bragg grating or fiber Fabry-Perot interferometer filters. The observed line-width is ~10 times less than line-width of other demonstrated up to date random distributed feedback fiber lasers. The random DFB laser with Fabry-Perot interferomete...
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: Applied Physics Express
سال: 2019
ISSN: 1882-0778,1882-0786
DOI: 10.7567/1882-0786/ab0a57