Nonlinear optical interactions involving counter-propagating photons are of great interest for
both classical and quantum optical applications. However, their use is sparsely spread due …

Established waveguide fabrication technologies on lithium niobate (LN) and potassium
titanyl phosphate (KTP) were revisited, and a comparative analysis of their performance for …

Optical waveguides fabricated in single crystals offer crucial passive/active optical
components for photonic integrated circuits. Single crystals possess inherent advantages …

Backward wave oscillators represent a class of tunable sources of electromagnetic radiation
that do not require a resonant cavity to satisfy the oscillation condition. In the optical regime …

Second harmonic generation plays a vital role in frequency conversion which mutually
promotes the laser technology and allows the wavebands extension of new coherent …

We investigate a new method of coercive field engineering for periodic poling of
RbKTiOPO_4 (RKTP). By ion exchanging RKTP in a molten salt containing 7 mol% Ba …

Nonlinear interactions involving counterpropagating photons are gaining much attention in
classical and quantum optics due to their unique properties that are very difficult, if not …

We report on the fabrication of an optical ridge waveguide in lithium fluoride crystal using the
method of C 5+ ion irradiation with precise diamond blade dicing. The guiding properties of …

A ridge waveguide is manufactured by the technique of O5+-ion irradiation combined with
diamond-blade dicing of a zinc sulfide (ZnS) crystal. The waveguide supports single-mode …

Coercive field engineering of periodically poled KTiOPO4 (PPKTP) for quasi-phase
matching (QPM) applications has successfully been done with Rb+-ion indiffusion (Rb …