A new basic structure suitable for a fully integrated all-fiber-optic stimulated emission dye source

Abstract

In the present work, our research is focused on an innovative compact all-fiber-optic structure suitable for the development of fully integrated dye lasers. The structure is based on a standard fiber-optic glass ferrule with two parallel openings along its length with diameters of 125 μm. A Fabry-Perot cavity is formed in one of the openings using two fused silica optical fibers with flat end facets. An angle-polished optical fiber with a reflective metal coating is placed in the second opening through which the active medium is pumped transversely. The active medium used is the Rhodamine 6G dye dissolved in glycerine, which is pumped by the 337.1-nm wavelength laser pulses of a nitrogen TEA laser. The ferrule-based design allows for a simplified set-up procedure and the integration of the pumping system to the basic structure of the laser, thus making it very compact. The design of the light source presented allows its future use in applications, such as lab-on-a-fiber, lab-on-a-chip and total analysis micro systems.

Diode-pumped all-fiber-optic liquid dye laser

“…The reason for choosing a fiber with a diameter of 125 µm is the prospect of placing it in the adjacent empty hole of the ferrule. Thus if the fiber tip is processed so as to obtain a micro mirror, the active medium can be excited transversely, as we have demonstrated [24].…”

“…We also have demonstrated a LD pumping through an optical fiber transversely in regard to the optical axis of the resonator, which is an alternative to the direct LD pumping demonstrated in previous works [10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Thus we can take the advantages of the basic structure used, as we have demonstrated in [24], and with the help of fiber micro-optics could create a miniature fully integrated all-fiber-optic dye laser.…”

“…In the present work we study experimentally a previously demonstrated miniature all-fiber-optic structure [24] under LD pumping through an optical fiber.…”

Fiber-coupled fluorescence light source suitable for spectroscopic applications

“…With the present experimental work we continue our research on optical fiber compatible structures filled wit h solutions of organic fluorescent dyes and their use as light sources [5][6][7][8][9][10]. The specific object of the present art icle is the fiberized optical structure based on a glass f erru le and its potential application as a broad-band light so u rce for fiber optic sensors with spectral detection [11][12] a s well as in excitation-emission matrix (EEM) fluorescence spectroscopy.…”