Te-As-Se glass microstructured optical fiber for the middle infrared

Abstract

We present the first fabrication, to the best of our knowledge, of chalcogenide microstructured optical fibers in Te-As-Se glass, their optical characterization, and numerical simulations in the middle infrared. In a first fiber, numerical simulations exhibit a single-mode behavior at 3.39 and 9.3 microm, in good agreement with experimental near-field captures at 9.3 microm. The second fiber is not monomode between 3.39 and 9.3 microm, but the fundamental losses are 9 dB/m at 3.39 microm and 6 dB/m at 9.3 microm. The experimental mode field diameters are compared to the theoretical ones with a good accordance.

Low loss microstructured chalcogenide fibers for large non linear effects at 1995 nm

“…3). This phenomenon between the observed propagation regime and the theoretical one has been already observed and explained in chalcogenide MOFs [6,14,23]. be obtained, whatever the injection conditions ( Fig.…”

Strong infrared spectral broadening in low-loss As-S chalcogenide suspended core microstructured optical fibers

“…These glasses are up to now the best compromise between material infrared transparency and non linear coefficient [6,7], by comparison with other non oxide glasses, such as heavy oxide or fluoride glasses. However, the elaboration of low losses chalcogenide MOFs is still a challenging issue [11,[24][25][26]. Among the numerous chalcogenide glasses, we have chosen the arsenic trisulphide (As 2 S 3 ) glass.…”

Progress in preparation and applications of Te-As-Se chalcogenide glasses and fibers

“…3(a) shows the DSC results with the heating rate of 2.5 K/min. When x= 0, 25,30,35,40, there was an obvious crystallization peak; when x= 5, 10, 15, there was a weak crystallization phenomenon; when x=20, there was no crystallization. When the heating rate was 5 K/min, as shown in Table 1, no crystallization occurred in the compositions of x=10, 15, and 20.…”

“…9(b), the loss remarkably diminished compared after purification, and the unclad Te 20 As 40 Se 40 glass fiber with minimum loss of 1.7 dB/m @ 8.8 μm was obtained. Désévédavy et al drew TAS glass into microstructured fiber for the first time [40].…”