Research on the waveguide lens and grating-integrated optical wavelength-division-multiplexing device

摘要

Abstract: Wavelength-division-multiplexing technology is now recognized as one of the key technologies in optical communication systems. Because it can greatly enhance the capacity of the communication systems. And the optical wavelength-division-multiplexing devices are the key parts in the wavelength-division-multiplexing technology. The authors have integrated a pair of lens and a grating on a piece of K$-7$/ glass substrate in order to achieve the optical wavelength-division-multiplexing function. The optical wavelength-division-multiplexing's wavelength ranges from 1.10 $mu@m to 1.55 $mu@m and its central wavelength is 1.3 $mu@m. The channel's interval is 40 nm and the available channels number $GREQ 12. The insertion losses $LSEQ 8 dB and the channel's crosstalk is better than $MIN@20 dB. The waveguide is K$+$PLU$/ ion exchange waveguide.!7