Title :
Optical Amplification at 1064 nm in Nd(TTA) 3(TPPO) 2 Complex Doped SU-8 Polymer Waveguide
Author :
Dan Zhang ; Xiaolong Li ; Xiaoliang Huang ; Senbo Liu ; Hao Fu ; Kaijun Che ; Lei Wang
Author_Institution :
Sch. of Inf. Sci. & Eng., Xiamen Univ., Xiamen, China
Abstract :
Nd(TTA)3(TPPO)2 complex (HTTA: 2-thenoyltrifluoroacetone, TPPO: triphenylphosphine oxide) doped SU-8 polymer waveguide amplifiers were demonstrated. The absorption and photoluminescence spectra were observed on a 100-μm-thick film of the Nd(TTA)3(TPPO)2 complex doped SU-8 polymer. Under excitation at 808 nm, the fluorescence was obtained at 904 nm, 1068 nm, and 1346 nm wavelengths. The full-width at half-maximum bandwidth was about 25 nm wide around 1068 nm. Using reactive ion etching technology, optical waveguides were fabricated by taking the Nd(TTA)3(TPPO)2 complex doped SU-8 polymer and polymethylmethacrylate (PMMA) material as the core and cladding layers, respectively. According to fundamental rate equations and optical power propagation equations, the gain characteristic of the polymer waveguide amplifier was simulated to be 5.1 dB/cm. An experimental setup for the optical gain measurement was established. A relative optical gain of about 2.4 dB/cm at 1064 nm was obtained in a 20-mm-long multimode waveguide for an input signal power value of 0.1 mW and pump power of 140 mW.
Keywords :
doping; fluorescence; light absorption; neodymium compounds; optical polymers; optical pumping; optical waveguides; photoluminescence; semiconductor optical amplifiers; sputter etching; 2-thenoyltrifluoroacetone; Nd(TTA)3(TPPO)2 complex; PMMA; absorption spectra; cladding layers; core layers; doped SU-8 polymer waveguide amplifiers; fluorescence; optical amplification; optical gain measurement; optical power propagation; optical waveguides; photoluminescence spectra; polymethylmethacrylate; power 0.1 mW; power 140 mW; reactive ion etching technology; size 100 mum; size 20 mm; triphenylphosphine oxide; wavelength 1064 nm; wavelength 1068 nm; wavelength 1346 nm; wavelength 808 nm; wavelength 904 nm; Gain; Optical amplifiers; Optical device fabrication; Optical pumping; Optical waveguides; Polymers; Stimulated emission; Polymer waveguide amplifier; neodymium complex; optical gain;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2015.2477278
