Microring resonator is a original integrated optics device

which has developed for several years. Being a basic elements

microring resonator coulpled to a waveguide vertically offers high-quality factors

in large scale photoelectric integrated circuits

it can be used as filters

multiplexers

modulators

lasers and etc. This component has promising application in wavelength-division multiplexing(WDM) system because of their (simple) structure

easier fabrication and compactness.Most of the microring resonator devices have been fabricated using semiconductor material. In this work

we use polymer to fabricate microring device

polymer has a number of advantages over semiconductor-based devices

the first one is to deduce loss

the use of low refractive index polymers will significantly reduce scattering loss

the second advantage is to provide better coupling efficiency to optical fibers than previously de-(monstrated) semiconductor waveguides due to the low index and the large cross section of the polymer waveguide. Polymer materials also have other properties such like the excellent photoelectric characteristics

lower cost and simpler fabrication. The structure and working principle of microring resonant wavelength multiplexers (MRRWM) and device design are discussed. In microring resonators

the coupling coefficient plays an important role in determining the device characteristics. The coupling coefficient depends exponentially on the gap distance between the ring and the straight waveguide. We analyzed the transmission characteristics

designed a 8 channels microring (resonant) wavelength multiplexer(MRRWM)

the central wavelength of MRRWM is 1.55 μm

the wavelength spacing is 1.6 nm. To fabricate polymer waveguide in microring devices

the reactive ion etching (RIE) technique was used.The single channel and 8 channel polymer MRRWM with polymers based on silicon are fabricated. In the optical measurement

we used a tunable semiconductor laser with a tuning range from 1 530 nm to 1 610 nm

a digital optical power meter

and an optical spectrum analyzer were used to analyze the optical characters. A fiber-waveguide precision alignment system with infrared CCD camera was used for light coupling. In conclusion

polymer microring resonators were successfully fabricated by RIE technique

their optical (characters) were optimazed and analyzed.