Indian Institute of Technology Bombay

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Research in Fiber Optic Research in Fiber Optic Communication and PhotonicsCommunication and Photonics

Prof. R.K. ShevgaonkarProf. R.K. Shevgaonkar

rks@ee.itb.ac.inrks@ee.itb.ac.in

Indian Institute of Technology Bombay

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Research Work in Progress/ CompletedResearch Work in Progress/ Completed

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• Designing of Special Characteristics fibers viz. DFF, DCF & Leaf-NZ-DF. Grating based devices for dispersion compensation in WDM systems.

• Analysis of fibre Bragg grating in Optical WDM Netwrok as Add-Drop Device. Optimisation of grating parameters for minimising ISI and crosstalk.

• Optical Wireless Communication.

• Walk-off Compensation in very Long distance Bit-Parallel WDM Link. Development of Multi-gigabit per second WDM source

• Development of DWDM Link with EDFA.

• Optically Controlled printed Semiconductor Antenna

Academia Industry Meet 2002, Electrical Engineering Department

Indian Institute of Technology Bombay

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Fiber Bragg Grating based devices • Uniform• Apodizes – Gaussian, GZM, Chirped

Optical Add/Drop Mux

Study of Signal Distortion

• Inter Symbol Interference (ISI)

• Interchannel Cross-Talk (ICCT)

• RIN noise due to ISI, ICCT → Pdf of Noise

→ BER Calculation

• Design of FBG for min RIN (perturbation Method)

Wide band Dispersion Compensator

Tilted FBG for Mode Convertion

Academia Industry Meet 2002, Electrical Engineering Department

Indian Institute of Technology Bombay

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Academia Industry Meet 2002, Electrical Engineering Department

Indian Institute of Technology Bombay

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Erbium Doped Fiber Amplifier

• Low & High power Analysis

• Cross Talk in WDM channels

• Experimental Measurement of XT

Multi Channel WDM Source

• Pulsed wide band Source

• Fibre Laser, SPM, Super Continum Generation

• Tunability of the λ-Comb

Study of Evolution of Non-Solitonic Pulses into Solutions and their Interaction

Development of a FO Link Simulation Software

Academia Industry Meet 2002, Electrical Engineering Department

Indian Institute of Technology Bombay

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Research in Optical Character RecognitionResearch in Optical Character Recognition

Development of English & Devnagri Script Recognition Systems

• Printed Scripts

• Cursive Scripts

Devnagri Script Reading System

Character Recognition & Phoneme Generation

Automatic Signature Verification Tool for Banking Application.

Cheque Amount Reading System for Banking Applications

Academia Industry Meet 2002, Electrical Engineering Department

Indian Institute of Technology Bombay

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List of the Ongoing/Completed List of the Ongoing/Completed Sponsored ProjectsSponsored Projects

• Fibre Optic Communication (M.H.R.D., India)

• Optically Controlled Printed Semiconductor Antennas (DoE, India)

• Fibre Optic Communication & Photonic Switching (M.H.R.D., India)

• Wavelength Division Multiplexed Fiber Optic Link (A.I.C.T.E., India)

• Development of an all-fibre Optic, Scalable, Superdense, Multi-Gbit/s WDM Source (DoE, India)

Academia Industry Meet 2002, Electrical Engineering Department