IEICE TRANSACTIONS on Electronics
Simulation of Interferometer-Type Ultrafast All-Optical Gate Switches Based on Intersubband Transition in GaN/AlGaN Multiple Quantum Wells
Summary :
Although all-optical gate switches based on the intersubband absorption in nitride quantum wells are predicted to operate at 1 Tb/s, realization of strong intersubband absorption at the optical communication wavelength is still difficult. An alternative approach is an interferometer-type gate switch utilizing refractive index change due to the intersubband absorption of a control pulse at a longer wavelength. Feasibility of Mach-Zehnder interferometer (MZI) gate switches, in which 1.55-µm pulses are controlled by 1.85-µm pulses, was theoretically investigated by finite-difference time-domain (FDTD) simulator. Although the effective phase shift does not reach π, 22.5% of the signal pulse energy was predicted to be gated by a 10-pJ control pulse in the MZI switch. Even 1.3-µm pulses can be controlled by 1.85-µm pulses at the expense of the switching energy. This approach provides a way to process signal pulses at the optical communication wavelength utilizing strong intersubband absorption at a longer wavelength.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E85-C No.1 pp.174-180
- Publication Date
- 2002/01/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on Ultrafast Optical Signal Processing and Its Application)
- Category
- Ultrafast All-Optical Switching, Optical Delay and Waveform Control
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Nobuo SUZUKI, "Simulation of Interferometer-Type Ultrafast All-Optical Gate Switches Based on Intersubband Transition in GaN/AlGaN Multiple Quantum Wells" in IEICE TRANSACTIONS on Electronics,
vol. E85-C, no. 1, pp. 174-180, January 2002, doi: .
Abstract: Although all-optical gate switches based on the intersubband absorption in nitride quantum wells are predicted to operate at 1 Tb/s, realization of strong intersubband absorption at the optical communication wavelength is still difficult. An alternative approach is an interferometer-type gate switch utilizing refractive index change due to the intersubband absorption of a control pulse at a longer wavelength. Feasibility of Mach-Zehnder interferometer (MZI) gate switches, in which 1.55-µm pulses are controlled by 1.85-µm pulses, was theoretically investigated by finite-difference time-domain (FDTD) simulator. Although the effective phase shift does not reach π, 22.5% of the signal pulse energy was predicted to be gated by a 10-pJ control pulse in the MZI switch. Even 1.3-µm pulses can be controlled by 1.85-µm pulses at the expense of the switching energy. This approach provides a way to process signal pulses at the optical communication wavelength utilizing strong intersubband absorption at a longer wavelength.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e85-c_1_174/_p
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@ARTICLE{e85-c_1_174,
author={Nobuo SUZUKI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Simulation of Interferometer-Type Ultrafast All-Optical Gate Switches Based on Intersubband Transition in GaN/AlGaN Multiple Quantum Wells},
year={2002},
volume={E85-C},
number={1},
pages={174-180},
abstract={Although all-optical gate switches based on the intersubband absorption in nitride quantum wells are predicted to operate at 1 Tb/s, realization of strong intersubband absorption at the optical communication wavelength is still difficult. An alternative approach is an interferometer-type gate switch utilizing refractive index change due to the intersubband absorption of a control pulse at a longer wavelength. Feasibility of Mach-Zehnder interferometer (MZI) gate switches, in which 1.55-µm pulses are controlled by 1.85-µm pulses, was theoretically investigated by finite-difference time-domain (FDTD) simulator. Although the effective phase shift does not reach π, 22.5% of the signal pulse energy was predicted to be gated by a 10-pJ control pulse in the MZI switch. Even 1.3-µm pulses can be controlled by 1.85-µm pulses at the expense of the switching energy. This approach provides a way to process signal pulses at the optical communication wavelength utilizing strong intersubband absorption at a longer wavelength.},
keywords={},
doi={},
ISSN={},
month={January},}
Copy
TY - JOUR
TI - Simulation of Interferometer-Type Ultrafast All-Optical Gate Switches Based on Intersubband Transition in GaN/AlGaN Multiple Quantum Wells
T2 - IEICE TRANSACTIONS on Electronics
SP - 174
EP - 180
AU - Nobuo SUZUKI
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E85-C
IS - 1
JA - IEICE TRANSACTIONS on Electronics
Y1 - January 2002
AB - Although all-optical gate switches based on the intersubband absorption in nitride quantum wells are predicted to operate at 1 Tb/s, realization of strong intersubband absorption at the optical communication wavelength is still difficult. An alternative approach is an interferometer-type gate switch utilizing refractive index change due to the intersubband absorption of a control pulse at a longer wavelength. Feasibility of Mach-Zehnder interferometer (MZI) gate switches, in which 1.55-µm pulses are controlled by 1.85-µm pulses, was theoretically investigated by finite-difference time-domain (FDTD) simulator. Although the effective phase shift does not reach π, 22.5% of the signal pulse energy was predicted to be gated by a 10-pJ control pulse in the MZI switch. Even 1.3-µm pulses can be controlled by 1.85-µm pulses at the expense of the switching energy. This approach provides a way to process signal pulses at the optical communication wavelength utilizing strong intersubband absorption at a longer wavelength.
ER -
English
