NDLI: Photonic generation of linearly chirped microwave waveform with a large time-bandwidth product using a silicon-based on-chip spectral shaper

Content Provider	IEEE Xplore Digital Library
Author	Weifeng Zhang Jianping Yao
Copyright Year	2015
Description	Author affiliation: Sch. of Electr. Eng. & Comput. Sci., Univ. of Ottawa, Ottawa, ON, Canada (Weifeng Zhang; Jianping Yao)
Abstract	Photonic generation of a linearly chirped microwave waveform with a large time-bandwidth product (TBWP) using a silicon-based on-chip spectral shaper is reported. The on-chip optical spectral shaper has a Mach-Zehnder interferometer (MZI) structure in which two linearly chirped waveguide gratings (LC-WBGs) with opposite chirp rates are incorporated into the two arms. The LC-WBGs are fabricated on two rib waveguides by linearly varying the rib widths along the gratings to generate linear chirps. By controlling the length difference between the two arms in the MZI, the spectral response of the shaper can be controlled to have a symmetrical, linearly increasing or linearly decreasing free spectral range (FSR), which is needed for the generation of a linearly chirped microwave waveform based on spectral-shaping and wavelength-to-time (SS-WTT) mapping. The proposed device is fabricated using a CMOS compatible process with 193-nm deep ultraviolet lithography. The use of the spectral shaper to generate a linearly chirped microwave waveform with a chirp rate of 1.54 GHz/ns and a TBWP of 615 is demonstrated.
Starting Page	1
Ending Page	4
File Size	883876
Page Count	4
File Format	PDF
e-ISBN	9781467393683
DOI	10.1109/MWP.2015.7356718
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-26
Publisher Place	Cyprus
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gratings Chirp Microwave photonics Decision support systems Silicon Optical waveguides silicon photonics Chirped microwave waveform microwave photonics optical pulse shaping linearly chirped waveguide grating wavelength-to-time mapping
Content Type	Text
Resource Type	Article

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	Mr. Siddhartha Mukherjee siddhartha@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	ndl-support@iitkgp.ac.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Libarray 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

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