Low-loss chalcogenide waveguides on lithium niobate for the mid-infrared. Academic Article

abstract

• We demonstrate low-loss chalcogenide (As(2)S(3)) waveguides on a LiNbO(3) substrate for the mid-IR wavelength (4.8 m). Designed for single-mode propagation, they are fabricated through photolithography and dry-etching technology and characterized on a mid-IR measurement setup with a quantum cascade laser. For straight waveguides, propagation loss as low as 0.33 dB/cm is measured and low-loss bends on the order of 100 m are simulated, with measurement results showing <3 dB for a 250 m bend radius. The coupling efficiency is estimated to be 81%. In addition, the influences of variations in width and bend radius are also investigated.

authors

• Madsen, Christi

published proceedings

• Opt Lett

author list (cited authors)

• Xia, X., Chen, Q. i., Tsay, C., Arnold, C. B., & Madsen, C. K.

citation count

• 33

complete list of authors

• Xia, Xin||Chen, Qi||Tsay, Candice||Arnold, Craig B||Madsen, Christi K

publication date

• October 2010

publisher

• Optica Publishing Group  Publisher

keywords

• 40 Engineering
• 4008 Electrical Engineering
• 51 Physical Sciences

Digital Object Identifier (DOI)

• 10.1364/OL.35.003228

start page

• 3228

end page

• 3230

volume

• 35

issue

• 19

URL

• http%3A%2F%2Fdx.doi.org%2F10.1364%2Fol.35.003228