Bifurcation structure of a swept-source laser

Mode locking of a wavelength-swept laser.

Self-starting, stable mode-locked pulses can be generated from a wavelength-swept laser through the interplay between an intracavity scanning filter and self-phase modulation. From an Er3+-doped fiber laser employing a scanning Fabry-Perot filter, 100 ps optical pulses are obtained at a 12-MHz repetition rate with center wavelengths that are swept over 27 nm around 1.55 microm in 1 ms.

Slow light with a swept-frequency source.

ct: We introduce a new concept for stimulated-Brillouin-scattering-based slow light in optical fibers that is applicable for broadly-tunable frequency-swept sources. It allows slow light to be achieved, in principle, over the entire transparency window of the optical fiber. We demonstrate a slow light delay of 10 ns at 1.55 μm using a 10-m-long photonic crystal fiber with a source sweep rate of...

In vivo blood flow imaging by a swept laser source based Fourier domain optical Doppler tomography.

A swept source based Fourier domain optical Doppler tomography (FDODT) system was developed. The technique is based on a phase-resolved method where phase information was retrieved from the reconstructed complex fringe signals. The aliasing effects and artifacts caused by lateral scanning and sample movement were removed with a signal processing technique. The standard deviation of the phase sh...

Swept-Source OCT Angiography: SS OCT AngioTM

High-Coherence Wavelength Swept Light Source

[Summary] Optical technologies that have so far been restricted to the field of optical communications are now starting to be applied in new fields, especially medicine. Optical Frequency Domain Reflectometry (OFDR) offering fast and accurate target position measurements is one focus of attention. The Wavelength Swept Light Source (WSLS) is said to be one of the key devices of OFDR, whose sweep...