Two-step reactive ion etching process has been optimized to demonstrate small cross-section single-mode silicon waveguides. This technique has helped to reduce the insertion loss of compact integrated photonic devices in SOI platform up to 3 dB. © 2012 IEEE.

Bijoy Krishna Das

Department of Electrical Engineering

INTEGRATED PHOTONIC DEVICES

MASK LESS

REACTIVE ION

SILICON ON INSULATOR

Silicon Photonics

SILICON WAVEGUIDE

Single mode

Size reductions

Integrated optics

Photonic devices

Photonics

Silicon on insulator technology

Waveguides

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Tapering and size reduction of single-mode silicon waveguides by maskless RIE

Technical Digest - 2012 17th Opto-Electronics and Communications Conference, OECC 2012

Integrated optical asymmetric Mach-Zehnder interferometer-based dense wavelength division multiplexing (DWDM) channel interleaver structures (2 × 2) have been theoretically studied using various single-mode waveguide geometries in silicon-on-insulator platform. Subsequently, a dispersion-free interleaver design has been proposed, fabricated, and characterized. It was designed to separate alternate DWDM channels with 100 GHz spacings. Some of the fabricated prototype devices have been fiber pigtailed and packaged in a suitably designed metal housing. The transmitted spectra ( 1520 nm < λ < 1600 nm) at each of the output ports reveal that alternate DWDM channel wavelengths are separated with a uniform inter-channel extinction of ∼ 18 dB. Each of the channel passbands shows their 3-dB bandwidth of ∼ 40 GHz. © 2006 IEEE.

Journal of Lightwave Technology

Dispersion-free SOI interleaver for DWDM applications

IEEE Journal of Selected Topics in Quantum Electronics

Si Photonic Wire Waveguide Devices

IEEE Photonics Technology Letters

Low-loss converters between optical silicon waveguides of different sizes and types

Optics Letters

Compact efficient broadband grating coupler for silicon-on-insulator waveguides

IEEE Journal of Quantum Electronics

Large single-mode rib waveguides in GeSi-Si and Si-on-SiO/sub 2/

Journal	Technical Digest - 2012 17th Opto-Electronics and Communications Conference, OECC 2012
Open Access	No