41 citations · 48 across the 14 of their papers we have counts for
12 papers · 1 filter
Ultra-stable laser with sub-Hz intrinsic linewidth using a silicon photonic chip
Mohamad Hossein Idjadi, Haotian Cheng, Benjia Li +4
Here, we demonstrate a novel optical self-injection-locking scheme integrated with a modulation-free laser frequency stabilization technique co-integrated with a compact vacuum-gap…
Chip-scale modulation-free laser stabilization using vacuum-gap micro-Fabry-Pérot cavity
Mohamad Hossein Idjadi, Haotian Cheng, Farshid Ashtiani +5
Narrow-linewidth lasers are vital for a broad range of scientific and technological applications, including atomic clocks and precision sensing. Achieving high frequency stability…
Integrated photonic deep neural network with end-to-end on-chip backpropagation training
Farshid Ashtiani, Mohamad Hossein Idjadi, Kwangwoong Kim
Integrated photonic neural networks (PNNs) have demonstrated significant potential to complement the digital electronic counterparts [1-3]. Nevertheless, robust and repeatable perf…
Dual-Wavelength -OFDR Using a Hybrid-Integrated Laser Stabilized to an Integrated SiN Coil Resonator
Mohamad Hossein Idjadi, Stefano Grillanda, Nicolas Fontaine +11
We demonstrate dual-wavelength distributed acoustic sensing over 37 km of standard single-mode fiber using -OFDR, utilizing a scalable hybrid-integrated dual-wavelength laser ch…
Modulation-Free Laser Stabilization with Extended Locking Range on a SiN Chip
Mohamad Hossein Idjadi, Farshid Ashtiani, Kwangwoong Kim
We demonstrate a modulation-free laser stabilization system using a cavity-coupled MZI with aided acquisition on a low-loss SiN chip, achieving more than an order-of-magnitude impr…
Hybrid-Integrated Dual-Wavelength Laser Frequency Locked to an Integrated Coil-Resonator for Optical Fiber Sensing
Mohamad Hossein Idjadi, Stefano Grillanda, Nicolas Fontaine +7
We demonstrate dual-frequency stabilization of a hybrid-integrated multi-channel laser to an integrated high Q-factor silicon nitride (SiN) coil resonator with more than 40 dB freq…
Wideband, Efficient AlScN-Si Acousto-Optic Modulator in a Commercially Available Silicon Photonics Process
Mertcan Erdil, Izhar, Yang Deng +5
Acousto-optic integration offers numerous applications including low-loss microwave signal processing, nonreciprocal light propagation, frequency comb generation, and broadband aco…
Dual-Polarization Phase Retrieval Receiver in Silicon Photonics
Brian Stern, Hanzi Huang, Haoshuo Chen +2
We demonstrate a silicon photonic dual-polarization phase retrieval receiver. The receiver recovers phase from intensity-only measurements without a local oscillator or transmitted…
Silicon Photonic Direct-Detection Phase Retrieval Receiver
Brian Stern, Haoshuo Chen, Kwangwoong Kim +3
We demonstrate a direct-detection phase retrieval receiver based on silicon photonics. The receiver implements strong dispersion and delay lines on a compact chip. We retrieve the…
Modulation-free Laser Stabilization Technique Using Integrated Cavity-Coupled Mach-Zehnder Interferometer
Mohamad Hossein Idjadi, Kwangwoong Kim
Stable narrow-linewidth light sources play a significant role in many precision optical systems. Electro-optic laser frequency stabilization systems, such as the well-known Pound-D…
Enhanced Frequency Noise Discrimination Using Cavity-coupled Mach-Zehnder Interferometer
Mohamad Hossein Idjadi, Andrea Blanco-Redondo
Here, an enhanced frequency noise discriminator is proposed using a cavity-coupled Mach-Zehnder interferometer and demonstrated on a general-purpose programmable integrated photoni…
A surface-normal photodetector as nonlinear activation function in diffractive optical neural networks
Farshid Ashtiani, Mohamad Hossein Idjadi, Ting-Chen Hu +7
Optical neural networks (ONNs) enable high speed parallel and energy efficient processing compared to conventional digital electronic counterparts. However, realizing large scale s…