Zobrazeno 1 - 10
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pro vyhledávání: '"F.K. Lau"'
Akademický článek
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Akademický článek
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Publikováno v:
IEEE Photonics Technology Letters. 19:203-205
An integrated parabolic lens capable of introducing a diverging effect to the optical mode propagating within the cavity of a tapered laser is proposed and demonstrated. This idea allows broader high-power beams to be generated by shorter cavities. D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2154b6e72804042168bf6ab9ec15564d
https://doi.org/10.1109/lpt.2006.890105
https://doi.org/10.1109/lpt.2006.890105
Akademický článek
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Autor:
Richard V. Penty, Chyng Wen Tee, Ian H. White, Michel Krakowski, Nicolas Michel, C. H. Kwok, F.K. Lau
Publikováno v:
2007 Conference on Lasers and Electro-Optics (CLEO).
An integrated 10th order Fresnel lens capable of improving the laser beam quality is reported. The far-field divergence is narrowed by an average of 1.9deg (29%) and an overall M2- factor improvement of 15% is recorded.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23a5443bc93cdc5ddb96628753ffa2c2
https://doi.org/10.1109/cleo.2007.4452688
https://doi.org/10.1109/cleo.2007.4452688
Publikováno v:
SPIE Proceedings.
Focused ion beam (FIB) etching technology is a highly efficient post-processing technique with the functionality to perform sputter etching and deposition of metals or insulators by means of a computer-generated mask. The high resolution and the abil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02f22268fd2800c7e37031d700398b92
https://doi.org/10.1117/12.691640
https://doi.org/10.1117/12.691640
Autor:
A. R. Kovsh, Richard V. Penty, F.K. Lau, S.S. Mikhrin, J. D. Ingham, Mark G. Thompson, D.A. Livshits, Ian H. White, Igor Krestnikov, Chyng Wen Tee, Y. Chu
Publikováno v:
2006 European Conference on Optical Communications.
Beam profiling of broad area quantum-dot VCSEL is presented with 10Gb/s data transmission over 300m of MMF. Single mode-performance with SMSR of 35dB is achieved with no significant impairment of the modulation performance.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::495f953aa87a8fe220463bfeed5ad637
https://doi.org/10.1109/ecoc.2006.4801268
https://doi.org/10.1109/ecoc.2006.4801268
Autor:
Richard V. Penty, Michel Lecomte, F.K. Lau, X. Zhao, Michel Calligaro, Michel Krakowski, Ian H. White, Olivier Parillaud, Chyng Wen Tee, Nicolas Michel
Publikováno v:
SPIE Proceedings.
This paper approaches the problem of catastrophic optical mirror damage from a geometrical waveguide point of view. Instead of engineering the characteristics of the semiconductor material at the facet of the laser using quantum-well intermixing or o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b8f76ed1ce8fd14aec90e3e3f49430d
https://doi.org/10.1117/12.662653
https://doi.org/10.1117/12.662653
Autor:
Richard V. Penty, F.K. Lau, Chyng Wen Tee, Olivier Parillaud, Michel Lecomte, Ian H. White, Michel Calligaro, Nicolas Michel, X. Zhao, Michel Krakowski
Publikováno v:
SPIE Proceedings.
A novel transmitter for directed-beam infra-red wireless that utilizes a combination of both gain-guiding and index guiding mechanism to ameliorate the shortcoming of the state-of-the-art technology is proposed and demonstrated. The 3mm long tapered
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c42cc11ffd126d0ef3e85dc5cc58dbc
https://doi.org/10.1117/12.648058
https://doi.org/10.1117/12.648058
Autor:
Richard V. Penty, Ian H. White, X. Zhao, Chyng Wen Tee, Nicolas Michel, F.K. Lau, Michel Krakowski
Publikováno v:
2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference.
A novel semiconductor laser cavity concept comprising an integrated phase correcting element is proposed and demonstrated. Characterization of the design for divergence angle reduction and near-field broadening revealed an improvement of 30.8% and 10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6efae3f0b98809c791dabc6920eceb2
https://doi.org/10.1109/ofc.2006.215564
https://doi.org/10.1109/ofc.2006.215564