Ultra-narrow optical spectral features resulting from highly dispersive light–matter
interactions are essential for a broad range of applications such as spectroscopy, slow-light …

A step-index tellurite optical fiber with loss∼ 0.02 dB/m at∼ 1545 nm was fabricated based
on TeO_2− Bi_2O_3− ZnO− Na_2O glass. With a nanosecond laser operated at∼ 1545 …

The conversion-efficiency for second-harmonic (SH) in optical fibers is significantly limited
by extremely weak second-order nonlinearity of fused silica, and pulse pump lasers with …

We demonstrate broadband polarization-entangled photon pair generation in a poled fiber
phase matched for Type II downconversion in the 1.5 μm telecom band. Even with signal …

Understanding the effects of optical nonlinearities on wave propagation is crucial for
applications such as fiber optic communication, optical signal processing, frequency …

When a chalcogenide–tellurite hybrid optical fiber with a high refractive index difference Δn=
0.24 is pumped by an optical parametric oscillator with a pump wavelength from 1700 to …

We experimentally demonstrate a simple method to measure the biphoton joint spectrum by
mapping the spectral information onto the temporal domain using a dispersive medium …

The optical amplification and frequency conversion of a gain-switched 1532 nm distributed
feedback (DFB) laser diode over a wide range of repetition rates are studied. A two stage …

Second-harmonic generation (SHG) in double-anode thermally poled fibers is numerically
investigated. The poling process is investigated based on a two-dimensional charge …

Entanglement is a property of quantum mechanics that confounds both physicists and
laymen alike, but has found practical applications in secure communications and metrology …