The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform
Diaa Khalil - One of the best experts on this subject based on the ideXlab platform.
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Deeply-Etched Optical MEMS Tunable Filter for Swept Laser Source Applications
IEEE Photonics Technology Letters, 2014Co-Authors: Haitham Omran, Mohamed Y. Shalaby, Khaled Hassan, Yasser M. Sabry, Mohamed Sadek, Diaa KhalilAbstract:In this letter, we report a wide tuning range MEMS-based swept Laser Source using deep reactive ion etching on an SoI substrate. A MEMS Fabry-Pérot filter with a free-spectral range and a tuning range wider than 94 nm is presented. The measured transmission loss of the filter is between -10.2 and -13.6 dB. This filter is used to construct a swept Laser Source with 85 nm tuning range. These results represent the widest tuning range reported in literature for an in-plane SoI-MEMS based swept Laser Source using deeply-etched free-standing distributed-Bragg-reflection mirrors. The recorded tuning range enables the use of the in-plane MEMS filter in optical coherence tomography applications.
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Deeply-Etched Optical MEMS Tunable Filter for Swept Laser Source Applications
IEEE Photonics Technology Letters, 2014Co-Authors: Haitham Omran, Mohamed Y. Shalaby, Khaled Hassan, Yasser M. Sabry, Mohamed Sadek, Diaa KhalilAbstract:In this letter, we report a wide tuning range MEMS-based swept Laser Source using deep reactive ion etching on an SoI substrate. A MEMS Fabry-Pérot filter with a free-spectral range and a tuning range wider than 94 nm is presented. The measured transmission loss of the filter is between -10.2 and -13.6 dB. This filter is used to construct a swept Laser Source with 85 nm tuning range. These results represent the widest tuning range reported in literature for an in-plane SoI-MEMS based swept Laser Source using deeply-etched free-standing distributed-Bragg-reflection mirrors. The recorded tuning range enables the use of the in-plane MEMS filter in optical coherence tomography applications.
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Linewidth of swept Laser Source
Proceedings of SPIE, 2012Co-Authors: Haitham Omran, Sami Sakhawy, M. Shalaby, Diaa KhalilAbstract:In this work we study the factors affecting the linewidth of a swept Laser Source. A ring fiber Laser Source based on EDFA and a Fabry-Perort resonator is used for this purpose. With this setup a swept Source with a linewidth of better than 0.1 nm is obtained over a tuning range of about 47 nm limited by the spectral gain of the EDFA amplifier used. The factors affecting the Source linewidth are then examined by modeling the EFDA amplifier and the swept Source and then compared to the practical measured results of an EDFA swept Laser Source. The measurements and simulations both show that the swept Laser linewidth is about 10 times narrower than the Fabry-Perot filter 3dB linewidth.
Haitham Omran - One of the best experts on this subject based on the ideXlab platform.
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Deeply-Etched Optical MEMS Tunable Filter for Swept Laser Source Applications
IEEE Photonics Technology Letters, 2014Co-Authors: Haitham Omran, Mohamed Y. Shalaby, Khaled Hassan, Yasser M. Sabry, Mohamed Sadek, Diaa KhalilAbstract:In this letter, we report a wide tuning range MEMS-based swept Laser Source using deep reactive ion etching on an SoI substrate. A MEMS Fabry-Pérot filter with a free-spectral range and a tuning range wider than 94 nm is presented. The measured transmission loss of the filter is between -10.2 and -13.6 dB. This filter is used to construct a swept Laser Source with 85 nm tuning range. These results represent the widest tuning range reported in literature for an in-plane SoI-MEMS based swept Laser Source using deeply-etched free-standing distributed-Bragg-reflection mirrors. The recorded tuning range enables the use of the in-plane MEMS filter in optical coherence tomography applications.
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Deeply-Etched Optical MEMS Tunable Filter for Swept Laser Source Applications
IEEE Photonics Technology Letters, 2014Co-Authors: Haitham Omran, Mohamed Y. Shalaby, Khaled Hassan, Yasser M. Sabry, Mohamed Sadek, Diaa KhalilAbstract:In this letter, we report a wide tuning range MEMS-based swept Laser Source using deep reactive ion etching on an SoI substrate. A MEMS Fabry-Pérot filter with a free-spectral range and a tuning range wider than 94 nm is presented. The measured transmission loss of the filter is between -10.2 and -13.6 dB. This filter is used to construct a swept Laser Source with 85 nm tuning range. These results represent the widest tuning range reported in literature for an in-plane SoI-MEMS based swept Laser Source using deeply-etched free-standing distributed-Bragg-reflection mirrors. The recorded tuning range enables the use of the in-plane MEMS filter in optical coherence tomography applications.
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Linewidth of swept Laser Source
Proceedings of SPIE, 2012Co-Authors: Haitham Omran, Sami Sakhawy, M. Shalaby, Diaa KhalilAbstract:In this work we study the factors affecting the linewidth of a swept Laser Source. A ring fiber Laser Source based on EDFA and a Fabry-Perort resonator is used for this purpose. With this setup a swept Source with a linewidth of better than 0.1 nm is obtained over a tuning range of about 47 nm limited by the spectral gain of the EDFA amplifier used. The factors affecting the Source linewidth are then examined by modeling the EFDA amplifier and the swept Source and then compared to the practical measured results of an EDFA swept Laser Source. The measurements and simulations both show that the swept Laser linewidth is about 10 times narrower than the Fabry-Perot filter 3dB linewidth.
Mohamed Y. Shalaby - One of the best experts on this subject based on the ideXlab platform.
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Deeply-Etched Optical MEMS Tunable Filter for Swept Laser Source Applications
IEEE Photonics Technology Letters, 2014Co-Authors: Haitham Omran, Mohamed Y. Shalaby, Khaled Hassan, Yasser M. Sabry, Mohamed Sadek, Diaa KhalilAbstract:In this letter, we report a wide tuning range MEMS-based swept Laser Source using deep reactive ion etching on an SoI substrate. A MEMS Fabry-Pérot filter with a free-spectral range and a tuning range wider than 94 nm is presented. The measured transmission loss of the filter is between -10.2 and -13.6 dB. This filter is used to construct a swept Laser Source with 85 nm tuning range. These results represent the widest tuning range reported in literature for an in-plane SoI-MEMS based swept Laser Source using deeply-etched free-standing distributed-Bragg-reflection mirrors. The recorded tuning range enables the use of the in-plane MEMS filter in optical coherence tomography applications.
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Deeply-Etched Optical MEMS Tunable Filter for Swept Laser Source Applications
IEEE Photonics Technology Letters, 2014Co-Authors: Haitham Omran, Mohamed Y. Shalaby, Khaled Hassan, Yasser M. Sabry, Mohamed Sadek, Diaa KhalilAbstract:In this letter, we report a wide tuning range MEMS-based swept Laser Source using deep reactive ion etching on an SoI substrate. A MEMS Fabry-Pérot filter with a free-spectral range and a tuning range wider than 94 nm is presented. The measured transmission loss of the filter is between -10.2 and -13.6 dB. This filter is used to construct a swept Laser Source with 85 nm tuning range. These results represent the widest tuning range reported in literature for an in-plane SoI-MEMS based swept Laser Source using deeply-etched free-standing distributed-Bragg-reflection mirrors. The recorded tuning range enables the use of the in-plane MEMS filter in optical coherence tomography applications.
Mohamed Sadek - One of the best experts on this subject based on the ideXlab platform.
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Deeply-Etched Optical MEMS Tunable Filter for Swept Laser Source Applications
IEEE Photonics Technology Letters, 2014Co-Authors: Haitham Omran, Mohamed Y. Shalaby, Khaled Hassan, Yasser M. Sabry, Mohamed Sadek, Diaa KhalilAbstract:In this letter, we report a wide tuning range MEMS-based swept Laser Source using deep reactive ion etching on an SoI substrate. A MEMS Fabry-Pérot filter with a free-spectral range and a tuning range wider than 94 nm is presented. The measured transmission loss of the filter is between -10.2 and -13.6 dB. This filter is used to construct a swept Laser Source with 85 nm tuning range. These results represent the widest tuning range reported in literature for an in-plane SoI-MEMS based swept Laser Source using deeply-etched free-standing distributed-Bragg-reflection mirrors. The recorded tuning range enables the use of the in-plane MEMS filter in optical coherence tomography applications.
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Deeply-Etched Optical MEMS Tunable Filter for Swept Laser Source Applications
IEEE Photonics Technology Letters, 2014Co-Authors: Haitham Omran, Mohamed Y. Shalaby, Khaled Hassan, Yasser M. Sabry, Mohamed Sadek, Diaa KhalilAbstract:In this letter, we report a wide tuning range MEMS-based swept Laser Source using deep reactive ion etching on an SoI substrate. A MEMS Fabry-Pérot filter with a free-spectral range and a tuning range wider than 94 nm is presented. The measured transmission loss of the filter is between -10.2 and -13.6 dB. This filter is used to construct a swept Laser Source with 85 nm tuning range. These results represent the widest tuning range reported in literature for an in-plane SoI-MEMS based swept Laser Source using deeply-etched free-standing distributed-Bragg-reflection mirrors. The recorded tuning range enables the use of the in-plane MEMS filter in optical coherence tomography applications.
Yasser M. Sabry - One of the best experts on this subject based on the ideXlab platform.
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Deeply-Etched Optical MEMS Tunable Filter for Swept Laser Source Applications
IEEE Photonics Technology Letters, 2014Co-Authors: Haitham Omran, Mohamed Y. Shalaby, Khaled Hassan, Yasser M. Sabry, Mohamed Sadek, Diaa KhalilAbstract:In this letter, we report a wide tuning range MEMS-based swept Laser Source using deep reactive ion etching on an SoI substrate. A MEMS Fabry-Pérot filter with a free-spectral range and a tuning range wider than 94 nm is presented. The measured transmission loss of the filter is between -10.2 and -13.6 dB. This filter is used to construct a swept Laser Source with 85 nm tuning range. These results represent the widest tuning range reported in literature for an in-plane SoI-MEMS based swept Laser Source using deeply-etched free-standing distributed-Bragg-reflection mirrors. The recorded tuning range enables the use of the in-plane MEMS filter in optical coherence tomography applications.
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Deeply-Etched Optical MEMS Tunable Filter for Swept Laser Source Applications
IEEE Photonics Technology Letters, 2014Co-Authors: Haitham Omran, Mohamed Y. Shalaby, Khaled Hassan, Yasser M. Sabry, Mohamed Sadek, Diaa KhalilAbstract:In this letter, we report a wide tuning range MEMS-based swept Laser Source using deep reactive ion etching on an SoI substrate. A MEMS Fabry-Pérot filter with a free-spectral range and a tuning range wider than 94 nm is presented. The measured transmission loss of the filter is between -10.2 and -13.6 dB. This filter is used to construct a swept Laser Source with 85 nm tuning range. These results represent the widest tuning range reported in literature for an in-plane SoI-MEMS based swept Laser Source using deeply-etched free-standing distributed-Bragg-reflection mirrors. The recorded tuning range enables the use of the in-plane MEMS filter in optical coherence tomography applications.
