6 papers
A fully integrated dispersion-managed femtosecond mode-locked laser
Xurong Li, Xuan Yang, Zheru Qiu +7
Femtosecond lasers underpin applications ranging from material processing to corneal surgery, while their regular pulse trains form optical frequency combs that have revolutionized…
Electrons herald non-classical light
Germaine Arend, Guanhao Huang, Armin Feist +9
Free electrons are a widespread and universal source of electromagnetic fields. The past decades witnessed ever-growing control over many aspects of electron-generated radiation, f…
High-pulse-energy integrated mode-locked lasers based on a Mamyshev oscillator
Zheru Qiu, Jianqi Hu, Xuan Yang +9
Ultrafast lasers have unlocked numerous advances across science and technology: they enable corneal surgery, reveal chemical reaction dynamics, and underpin optical atomic clocks.…
Copper-impurity-free photonic integrated circuits enable deterministic soliton microcombs
Xinru Ji, Xurong Li, Zheru Qiu +5
Chip-scale optical frequency combs based on microresonators (microcombs) enable GHz-THz repetition rates, broad bandwidth, compactness, and compatibility with wafer-scale manufactu…
Full C- and L-band tunable erbium-doped integrated lasers via scalable manufacturing
Xinru Ji, Xuan Yang, Yang Liu +8
Erbium (Er) ions are the gain medium of choice for fiber-based amplifiers and lasers, offering a long excited-state lifetime, slow gain relaxation, low amplification nonlinearity a…
Terabit-class coherent communications enabled by an integrated photonics erbium doped amplifier
Di Che, Stefano Grillanda, Yang Liu +7
Coherent technologies have revolutionized optical communications, driving the capacity per fiber to multi-terabit per second (Tb/s) in combination with wavelength division multiple…