High-performance surface-normal modulators based on stepped quantum wells

H. Mohseni; W. K. Chan; H. An; A. Ulmer; D. Capewell

doi:10.1117/12.607320

High-performance surface-normal modulators based on stepped quantum wells

H. Mohseni^*, W. K. Chan, H. An, A. Ulmer, D. Capewell

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

We present high-performance surface-normal modulators based on unique properties of stepped quantum wells (SQWs) around the eye-safe wavelength of 1550 nm. Fabricated devices show nearly two times better efficiency and 7 dB higher extinction ratio compared with the conventional devices with rectangular and coupled-quantum well active layers. Moreover, the optical bandwidth is about 70 nm at a 3dB modulation depth, which is more than five times wider than the optical bandwidth of the conventional devices. Such a wide optical bandwidth eliminates the need for a temperature controller. This is a critical advantage for many applications such as unmanned aerial vehicles (UAVs) and dynamic optical tags (DOTs), where limited volume, power, and weight can be allocated to the modulator system.

Original language	English (US)
Article number	25
Pages (from-to)	191-198
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5814
DOIs	https://doi.org/10.1117/12.607320
State	Published - Nov 10 2005
Event	Enabling Photonics Technologies for Defense, Security, and Aerospace Applications - Orlando, FL, United States Duration: Mar 31 2005 → Apr 1 2005

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.607320

Cite this

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title = "High-performance surface-normal modulators based on stepped quantum wells",

abstract = "We present high-performance surface-normal modulators based on unique properties of stepped quantum wells (SQWs) around the eye-safe wavelength of 1550 nm. Fabricated devices show nearly two times better efficiency and 7 dB higher extinction ratio compared with the conventional devices with rectangular and coupled-quantum well active layers. Moreover, the optical bandwidth is about 70 nm at a 3dB modulation depth, which is more than five times wider than the optical bandwidth of the conventional devices. Such a wide optical bandwidth eliminates the need for a temperature controller. This is a critical advantage for many applications such as unmanned aerial vehicles (UAVs) and dynamic optical tags (DOTs), where limited volume, power, and weight can be allocated to the modulator system.",

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AU - Mohseni, H.

AU - Chan, W. K.

AU - An, H.

AU - Ulmer, A.

AU - Capewell, D.

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N2 - We present high-performance surface-normal modulators based on unique properties of stepped quantum wells (SQWs) around the eye-safe wavelength of 1550 nm. Fabricated devices show nearly two times better efficiency and 7 dB higher extinction ratio compared with the conventional devices with rectangular and coupled-quantum well active layers. Moreover, the optical bandwidth is about 70 nm at a 3dB modulation depth, which is more than five times wider than the optical bandwidth of the conventional devices. Such a wide optical bandwidth eliminates the need for a temperature controller. This is a critical advantage for many applications such as unmanned aerial vehicles (UAVs) and dynamic optical tags (DOTs), where limited volume, power, and weight can be allocated to the modulator system.

AB - We present high-performance surface-normal modulators based on unique properties of stepped quantum wells (SQWs) around the eye-safe wavelength of 1550 nm. Fabricated devices show nearly two times better efficiency and 7 dB higher extinction ratio compared with the conventional devices with rectangular and coupled-quantum well active layers. Moreover, the optical bandwidth is about 70 nm at a 3dB modulation depth, which is more than five times wider than the optical bandwidth of the conventional devices. Such a wide optical bandwidth eliminates the need for a temperature controller. This is a critical advantage for many applications such as unmanned aerial vehicles (UAVs) and dynamic optical tags (DOTs), where limited volume, power, and weight can be allocated to the modulator system.

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High-performance surface-normal modulators based on stepped quantum wells

Abstract

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