The 2-<inline-formula> <tex-math> <?CDATA ${\rm{\mu }}{\rm{m}}$?> </tex-math><mml:math> <mml:mi mathvariant="normal">μ</mml:mi> <mml:mi mathvariant="normal">m</mml:mi> </mml:math> <inline-graphic xmlns:xlink="https://www.w3.org/1999/xlink" xlink:href="cpb_28_8_084209_ieqn1.gif"/> </inline-formula> to 6-<inline-formula> <tex-math> <?CDATA ${\rm{\mu }}{\rm{m}}$?> </tex-math><mml:math> <mml:mi mathvariant="normal">μ</mml:mi> <mml:mi mathvariant="normal">m</mml:mi> </mml:math> <inline-graphic xmlns:xlink="https://www.w3.org/1999/xlink" xlink:href="cpb_28_8_084209_ieqn2.gif"/> </inline-formula> mid-infrared supercontinuum generation in cascaded ZBLAN and As<sub>2</sub>Se<sub>3</sub> step-index fibers

The 2-

μ m

to 6-

μ m

mid-infrared supercontinuum generation in cascaded ZBLAN and As₂Se₃ step-index fibers

Yao Jinmei¹, Zhang Bin^{1, 2, 3, †}, Yin Ke⁴, Hou Jing^{1, 2, 3, ‡}

(a) Damaged vertical incident facet of As₂Se₃ fiber pumped at 50-kHz repetition rate with maximum pump power of 263 mW; (b) optical microscope image of the longitudinal input segment of damaged As₂Se₃ fiber.