352 citations · 1.3k across the 10 of their papers we have counts for
12 papers
Three-dimensional integration enables ultra-low-noise, isolator-free Si photonics
Chao Xiang, Warren Jin, Osama Terra +12
While photonic integrated circuits (PICs) are being widely used in applications such as telecommunications and datacenter interconnects, PICs capable of replacing bulk optics and f…
Ultralow voltage, High-speed, and Energy-efficient Cryogenic Electro-Optic Modulator
Paolo Pintus, Anshuman Singh, Weiqiang Xie +7
Photonic integrated circuits (PICs) at cryogenic temperatures enable a wide range of applications in scalable classical and quantum systems for computing and sensing. A promising a…
High-performance lasers for fully integrated silicon nitride photonics
Chao Xiang, Joel Guo, Warren Jin +12
Silicon nitride (SiN) waveguides with ultra-low optical loss enable integrated photonic applications including low noise, narrow linewidth lasers, chip-scale nonlinear photonics, a…
Laser soliton microcombs on silicon
Chao Xiang, Junqiu Liu, Joel Guo +10
Silicon photonics enables wafer-scale integration of optical functionalities on chip. A silicon-based laser frequency combs could significantly expand the applications of silicon p…
Ultraprecise optical-frequency stabilization with heterogeneous III-V/Si lasers
Liron Stern, Wei Zhang, Lin Chang +8
Demand for low-noise, continuous-wave, frequency-tunable lasers based on semiconductor integrated photonics has been advancing in support of numerous applications. In particular, a…
Ultrahigh-Q AlGaAs-on-insulator microresonators for integrated nonlinear photonics
Weiqiang Xie, Lin Chang, Haowen Shu +4
Aluminum gallium arsenide (AlGaAs) and related III-V semiconductors have excellent optoelectronic properties. They also possess strong material nonlinearity as well as high refract…
A narrow-linewidth III-V/Si/Si3N4 laser using multilayer heterogeneous integration
Chao Xiang, Warren Jin, Joel Guo +5
Silicon nitride (Si3N4), as a complementary metal-oxide-semiconductor (CMOS) material, finds wide use in modern integrated circuit (IC) technology. The past decade has witnessed tr…
Ultra-efficient frequency comb generation in AlGaAs-on-insulator microresonators
Lin Chang, Weiqiang Xie, Haowen Shu +13
Recent advances in nonlinear optics have revolutionized the area of integrated photonics, providing on-chip solutions to a wide range of new applications. Currently, the state of t…
On-chip polarization rotator for type I second harmonic generation
Eric J. Stanton, Lin Chang, Weiqiang Xie +12
We demonstrate a polarization rotator integrated at the output of a GaAs waveguide producing type I second harmonic generation (SHG). Form-birefringent phase matching between the p…
Improved second harmonic performance in periodically poled LNOI waveguides through engineering of lateral leakage
Andreas Boes, Lin Chang, Markus Knoerzer +4
In this contribution we investigate the impact of lateral leakage for linear and nonlinear optical waveguides in lithium niobate on insulator (LNOI). Silicon nitride (SiN) loaded a…
Heterogeneously integrated GaAs waveguides on insulator for efficient frequency conversion
Lin Chang, Andreas Boes, Xiaowen Guo +12
Tremendous scientific progress has been achieved through the development of nonlinear integrated photonics. Prominent examples are Kerr-frequency-comb generation in micro-resonator…
An electrical probe of the phonon mean-free path spectrum
Ashok T. Ramu, Nicole I. Halaszynski, Jonathan D. Peters +2
Most studies of the mean-free path accumulation function (MFPAF) rely on optical techniques to probe heat transfer at length scales on the order of the phonon mean-free path. In th…