Development of Ultrabroadband Light Source Based on Stimulated Raman Scattering in P-doped Silica Optical Fiber for Optical Coherence Tomography

Abstract

We describe the operational characteristics of an ultrabroadband light source using a fiber Raman laser based on the stimulated Raman scattering in a single-mode optical fiber pumped by a self Q-switched Ti:sapphire laser for application in optical coherence tomography. Ultrabroadband output light covering the range from 770 to 1650 nm was obtained using a 500-m-long single-mode P-doped SiO2 optical fiber pumped by the Ti:sapphire laser with a spectral width of 13 nm. When a white-light Michelson interferometer was constructed using the fiber Raman laser as a light source, a longitudinal spatial resolution of 1.7 µm was achieved.

Design and Optimization of Cr4+:Y3Al5O12 Double-Clad Crystal Fiber Laser

“…Fiber lasers have emerged to replace bulk lasers in many applications including biophotonics, environmental sensing, and optical communications owing to superior compactness, cost, stability, and heat dissipation. [15][16][17] These characteristics make fiber lasers practical alternatives to conventional bulk lasers. In particular, a Cr 4þ :YAG double-clad crystal fiber (DCF) laser grown by the codrawing laser-heated pedestal growth (CDLHPG) technique has been demonstrated to achieve low-threshold room-temperature (RT) lasing.…”