Title :
A PbS quantum dot polymer optical waveguide amplifier
Author :
Lan, Lugang ; Pang, Fufei ; Sun, Xiaolan ; Wang, Tingyun
Author_Institution :
Key Lab. of Specialty Fiber Opt. & Opt. Access Networks, Shanghai Univ., Shanghai, China
Abstract :
A polymer optical waveguide amplifier based on PbS quantum dots (QDs) is demonstrated. It is fabricated by coating PbS quantum dots film on a SU-8 optical channel waveguide. The PbS QDs are synthesized by a combined colloidal and sol-gel method. The SU-8 polymer optical channel waveguide is fabricated by using a direct ultraviolet (UV) photolithography technology. With a Wavelength Division Multiplexer (WDM), the signal and pump waves can be combined and injected into the optical channel waveguide which is covered by QDs. The optical wave interacts with the PbS QDs through evanescent wave and is amplified. By using a 10mm length waveguide, a 3.0dB gain was observed at 1310nm wavelength with 980nm pump.
Keywords :
IV-VI semiconductors; colloids; lead compounds; optical polymers; optical pumping; optical waveguides; semiconductor optical amplifiers; semiconductor quantum dots; sol-gel processing; ultraviolet lithography; wavelength division multiplexing; PbS; PbS quantum dots film; SU-8 polymer optical channel waveguide; UV photolithography; colloidal method; direct ultraviolet photolithography; evanescent wave; film coating; gain 3.0 dB; polymer optical waveguide amplifier; pump waves; sol-gel method; wavelength 1310 nm; wavelength 980 nm; wavelength division multiplexer; Abstracts; Cleaning; Educational institutions; Propagation losses; Silicon; PbS quantum dots; SU-8; evanescent wave; optical waveguide amplifier; polymer;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
