Zobrazeno 1 - 10
of 22
pro vyhledávání: '"J H Marsh"'
Publikováno v:
physica status solidi c. 3:399-402
The research presented in this thesis describes the realisation of single-mode extended cavity GaInNAs/GaAs lasers. The GaInNAs/GaAs material system has gained much attention recently, and has been cited as a possible replacement to the InGaAsP/InP m
Publikováno v:
IEEE Photonics Conference 2012.
Autor:
J. H. Marsh
Publikováno v:
British medical journal. 2(1908)
Autor:
A. Saber Hehny, Weidong Zhou, J. H. Marsh, Jayshri Sabarinathan, Donghai Zhu, P. K. Bhattacharya
Publikováno v:
1999 IEEE LEOS Annual Meeting Conference Proceedings. LEOS'99. 12th Annual Meeting. IEEE Lasers and Electro-Optics Society 1999 Annual Meeting (Cat. No.99CH37009).
We report a relatively simple technique to realize a GaAs-based quasi-3D photonic bandgap (PBG) material with an index contrast of /spl sim/2, in which a single epitaxial growth and impurity-induced layer disordering and wet oxidation steps are used.
Selective modification of bandgaps of GaInNAs/GaAs structures by quantum well intermixing techniques
Autor:
H. D. SUN, S. CALVEZ, M. D. DAWSON, F. ROBERT, A. C. BRYCE, J. H. MARSH, H. RIECHERT, P. GILET, L. GRENOUILLET AND A. MILLION, MACALUSO, Roberto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3658::b82071ae73d5dc64f0bbfc28ed0fba18
http://hdl.handle.net/10447/44278
http://hdl.handle.net/10447/44278
Publikováno v:
8th IEEE International Symposium on High Performance Electron Devices for Microwave and Optoelectronic Applications (Cat. No.00TH8534).
Novel compound-cavity laser diodes are modelocked at a harmonic of the fundamental round-trip frequency to achieve repetition rates of up to 2.1 THz. The devices are fabricated from GaAs-AlGaAs material at a wavelength of 860 nm and incorporate two g
Publikováno v:
Conference on Lasers and Electro-Optics-Europe.
All-optical space switches are increasingly important for high performance optical communication networks and systems. A wide range of optical switches have been studied in recent years, but they remain costly or provide limited functionality. We rep
Publikováno v:
1994 Conference on Lasers and Electro-Optics Europe.
It has been recently proposed, and demonstrated in a fibre laser,1 that synchronising a laser in a passive mode-locking (PML) regime by an external signal can be used to solve an important practical task of the extraction of a clock frequency from a