NDLI: All-optical waveguide-type gain switch utilizing intersubband transition

Content Provider	IEEE Xplore Digital Library
Author	Hirono, T. Kobayashi, H. Asai, H. Yokoyama, K.
Copyright Year	1995
Abstract	All-optical switching performance of waveguide-type device utilizing intersubband transition is investigated by analyzing the position-dependent change of optical power densities and carrier densities in the waveguide. In the device, the three lowest energy-level subbands in the conduction band structure of asymmetric coupled quantum wells are used. The optical excitation pulse excites the electrons in the first subband to the third subband and the stimulated emission between the third subband and second subband amplifies the optical signal pulse. We find that the signal pulse is notably amplified when the excitation pulsewidth is less than the relaxation time of the third subband. The calculated results show that wavelength conversion from 1.35 to 1.6 /spl mu/m with a gain of more than 10 dB is achieved by the excitation using an optical pulse with 1.5-ps width. This demonstrates the effectiveness of using a waveguide-type device structure with pulsed operation to make devices with a high-optical gain. We also derive a simple approximation for the optical gain. We show that the approximation gives results in good agreement with the results of the rigorous simulation using a finite difference method and the approximation is useful for designing devices.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	410
Ending Page	417
Page Count	8
File Size	268504
File Format	PDF
ISSN	1077260X
Volume Number	2
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical waveguides Optical pulses Optical wavelength conversion Stimulated emission Pulse amplifiers Electron optics Waveguide transitions Optical switches Performance analysis Optical devices
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Wavelength conversion and pulse reshaping through cascaded interactions in an MZI configuration

All-optical wavelength conversion at 42.7 Gbit/s in a 4 mm long silicon-organic hybrid waveguide

Switching Characteristics of All-Optical Wavelength-Selective Switch Consisting of Waveguide-Type Raman Amplifiers and 3dB Couplers

Proposal of all-optical wavelength-selective switching using waveguide-type Raman amplifiers and 3-dB couplers

Ultrafast all-optical modulation by GaN intersubband transition in a ridge waveguide

All-Optical Wavelength-Selective Switch Consisting of Asymmetric X-Junction Couplers and Raman Amplifiers for Wide Wavelength Range

InGaAs/AlAs/AlAsSb coupled quantum intersubband transition all-optical switch with low switching energy for OTDM

Time-Resolved Characterization of All-Optical Switch Utilizing GaN Intersubband Transition

Broad-bandwidth optical gain and efficient wavelength conversion in silicon waveguides

All-optical waveguide-type gain switch utilizing intersubband transition

Similar Documents

Wavelength conversion and pulse reshaping through cascaded interactions in an MZI configuration

All-optical wavelength conversion at 42.7 Gbit/s in a 4 mm long silicon-organic hybrid waveguide

Switching Characteristics of All-Optical Wavelength-Selective Switch Consisting of Waveguide-Type Raman Amplifiers and 3dB Couplers

Proposal of all-optical wavelength-selective switching using waveguide-type Raman amplifiers and 3-dB couplers

Ultrafast all-optical modulation by GaN intersubband transition in a ridge waveguide

All-Optical Wavelength-Selective Switch Consisting of Asymmetric X-Junction Couplers and Raman Amplifiers for Wide Wavelength Range

InGaAs/AlAs/AlAsSb coupled quantum intersubband transition all-optical switch with low switching energy for OTDM

Time-Resolved Characterization of All-Optical Switch Utilizing GaN Intersubband Transition

Broad-bandwidth optical gain and efficient wavelength conversion in silicon waveguides

All-optical waveguide-type gain switch utilizing intersubband transition