Zobrazeno 1 - 10
of 201
pro vyhledávání: '"C.-E. Zah"'
Publikováno v:
Optical and Quantum Electronics. 28:463-473
We discuss the design of uncooled lasers which minimizes the change in both threshold current and slope efficiency over the temperature range from−40 to +85°C [1]. To prevent carrier overflow under high-temperature operation, the electron confinem
Autor:
W.C. Young, T.P. Lee, L. Curtis, N.C. Andreadakis, Rajaram Bhat, C. E. Zah, D.D. Mahoney, B. Pathak, F. Favire, P.S.D. Lin, C. Caneau, J. Gamelin
Publikováno v:
International Journal of High Speed Electronics and Systems. :91-109
We discuss the advantages of wavelength-division-multiplexed (WDM) lightwave systems and the need for monolithically integrated multiwavelength laser arrays. For WDM light-wave systems to be cost effective, it is important to reduce the per-wavelengt
Publikováno v:
IEEE Journal of Quantum Electronics. 28:151-156
Nondegenerate four-wave mixing is measured in the 1.5 mu m traveling-wave semiconductor optical amplifier medium as a function of the pump-probe detuning frequency ranging from a few GHz to 400 GHz. It is found that two different sources are responsi
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 38:534-545
Describes applications of traveling-wave laser amplifiers (TWLAs) in subcarrier-multiplexed distribution systems for both frequency-modulated (FM) and amplitude-modulated vestigial-sideband (AM-VSB) video signal distribution. The characteristics of a
Publikováno v:
Journal of Lightwave Technology. 8:1441-1451
A theoretical model of distributed Bragg reflector (DBR) active filters is presented and verified experimentally through measurements of the transfer function and the noise spectra. The theory allows simple yet accurate evaluation of the transmission
Publikováno v:
Applied Physics Letters. 64:3145-3147
High‐voltage electron‐beam‐induced‐current imaging is used to study the aging of two sets of commercial 0.98 μm lasers with identical strained quantum wells (In0.2Ga0.8As) but different cladding layers (Al0.55Ga0.45As versus In0.49Ga0.51P) o
Publikováno v:
Applied Physics Letters. 64:548-550
The origin of the nonlinear gain effect in 1.5 μm semiconductor active layers is investigated by using highly nondegenerate four‐wave mixing, where the pump‐probe detuning is extended up to 2 THz. From the signal intensity measured as a function
Publikováno v:
IEEE Photonics Technology Letters. 2:48-50
The residual facet reflectivities and high gain of a traveling wave optical amplifier (TWA) give rise to a significant amount of gain ripples on top of the gain curve. In lightwave communication systems with data rates in excess of 10 Gbit/s, both th
We discuss the design, fabrication, and performance of multiwavelength laser array transmitters that have been used in the reconfigurable optical network testbed for the Optical Network Technology Consortium (ONTC). The experimental 4-node multiwavel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53ef2fdd5da8ff2e03f610dd1935c814
https://doi.org/10.21236/ada313759
https://doi.org/10.21236/ada313759
Publikováno v:
Semiconductor Lasers Advanced Devices and Applications.
An uncooled laser transmitter is cheaper and more reliable than a thermo-electrically cooled laser transmitter because of its simplicity in packaging. A low-cost, highly-reliable uncooled laser may have a strong influence on pushing fiber deployment