Photonic wire waveguide
Si microring resonator
Grating coupler
DBR with one side modulation
SOI curved grating coupler
Tapered SWG waveguide
SOI microring resonator
DBR with double side modulation
Fully etched SOI grating coupler
SiN curved grating Coupler
Cross-section of SiN wire waveguide
Perspective view of the VHS Power Splitter connecting SiN to AlN, Si layers, while functioning as a 3 dB power splitter.
Confocal microscopic image of the 14 power splitter implemented using cascaded 12 MZIs driven by diode-assisted microheaters. The diode array is located near the bondpad array, and each diode is connected in series with the corresponding metal microheater. (b) The chip is electrically packaged with a custom-designed DC printed circuit board (PCB) and mounted on a thermo-electric cooler (TEC) for precise temperature control during operation.
Artistic schematic representation of a 3D-PIC using the proposed OTVs
3D perspective view of the proposed optical tunnel vias (OTVs)
Process layout of a three-stack (SOI/SiN/AlN) photonic integrated circuit integrating optical tunnel vias (OTV1 and OTV2), shown up to the second metal (M2) layer: (a) lateral view; and (b) cross-sectional view.
Schematic representation of three-layer waveguide (Si/SiN/AlN) stacking for theoretical investigation of cross-talks: (a) Cross-sectional view; and (b) 3D view.
(a) PN Diode connected to the bondpads, (b) 12 MZI integrated with microheaters in both the balanced arms, and (c) 14 MZI-based programmable power splitter, consisting of three cascaded 12 MZIs with integrated DAMs.
(a) Schematic of 12 MZI integrated with the proposed DAMs. (b) Confocal microscope image of the fabricated device, highlighting the DAM placement and bondpad connections. (c) Measured transmission vs. voltage for MZI 2.
Sarad - ECIO-2026, Switzerland
Riddhi - ECIO-2026, Switzerland
Anjana - ECIO-2026, Switzerland
Sarad - Poster Presentation in ECIO-2026, Switzerland
Riddhi - Poster Presentation in ECIO-2026, Switzerland
Anjana - Poster Presentation in ECIO-2026, Switzerland
Ram & Yash Poster Presentation in ECIO-2026, UAE
Ram - Poster Presentation in ECIO-2026, UAE
Yash - Poster Presentation in ECIO-2026, UAE
Piyush - ECIO-2026, Switzerland
IIT Delhi, Abu Dhabi - Feb 2026
IPC 2025, Singapore
Sarad - IPC 2025, Singapore
Anushka - IPC 2025, Singapore
Arnab
SCI-2025, Bengaluru
NCC 2025, IIT Delhi
