QD lasers go to market
نویسندگان
چکیده
منابع مشابه
III-Nitride QD Lasers
III-Nitrides QD lasers are studied in detail. Two types of QD structures are considered, GaN/AlxGa1-xN/AlN and InxGa1-xN/ In0.04Ga0.96N /GaN. Effects of: QD size; QD and WL composition; and doping are studied through the calculations of gain, threshold current, and intensity modulation bandwidth. It is shown that GaN QDs are less sensitive to size fluctuations. Bandwidth increases with doping a...
متن کاملTHEORY OF THE GAIN CHARACTERISTICS OF InGaN/AlGaN QD LASERS
We present a theoretical analysis of the gain characteristics of InGaN/AlGaN quantum dot (QD) lasers. We calculate the elastic strain distribution caused by the lattice mismatch between the QD and the barrier using an original method which takes into account the hexagonal symmetry of the structure’s elastic properties. The method is based on an analytical derivation of the Fourier transform of ...
متن کاملEnhanced Modulation and Noise Characteristics in 1.55 µm QD Lasers using Additional Optical Pumping
The modulation response, relative intensity noise (RIN) and frequency noise (FN) characteristics of quantum dot (QD) lasers are investigated theoretically in the presence of an external optical beam. Using small signal analysis of the rate equations for carriers and photons, it is demonstrated that by injecting excess carriers into the QDs excited state through optical pumping, the modulation r...
متن کاملenhanced modulation and noise characteristics in 1.55 µm qd lasers using additional optical pumping
the modulation response, relative intensity noise and frequency noise characteristics of qd lasers are investigated theoretically, in presence of an additional optical pumping. it is revealed that the modulation response of qd laser enhances under additional optical beam. by small signal analysis of the carriers' and photons' rates, it is proposed that by injecting excess carriers to ...
متن کاملFrom qd to LR, or, How were the qd and LR algorithms discovered?
Perhaps the most astonishing idea in eigenvalue computation is Rutishauser’s idea of applying the LR transform to a matrix for generating a sequence of similar matrices that become more and more triangular. The same idea is the foundation of the ubiquitous QR algorithm. It is well known that this idea originated in Rutishauser’s qd algorithm, which precedes the LR algorithm and can be understoo...
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ژورنال
عنوان ژورنال: III-Vs Review
سال: 2004
ISSN: 0961-1290
DOI: 10.1016/s0961-1290(04)00359-x