Title :
Polymeric tunable optical attenuator for power regulator in WDM system
Author :
Yong-Sung Jin ; Sang-Shin Lee ; Yung-Sung Son
Author_Institution :
Devices & Mater. Lab., LG Corp. Inst. of Technol., Seoul, South Korea
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
In this paper, we have fabricated a tunable optical attenuator (TOA) based on thermo-optical cutoff modulators in polymers. For the cutoff modulator, a tapered waveguide was employed to reduce the electrical power consumption. It is combined with a fiber coupler which is embedded in a silicon V-groove block to provide two output ports, one main port and one monitoring port. The main port transmits the attenuated output, while the monitoring port has a fraction of the main port power and is used to perform feedback control in order to achieve a constant output when input light power and polarization are varied.
Keywords :
integrated optics; optical communication equipment; optical control; optical fibre couplers; optical modulation; optical polymers; optical tuning; optical waveguide components; thermo-optical effects; waveguide attenuators; wavelength division multiplexing; WDM system; constant output; feedback control; fiber coupler; monitoring port; output ports; polymeric tunable optical attenuator; power consumption; power regulator; silicon V-groove block; tapered waveguide; thermo-optical cutoff modulators; Energy consumption; Monitoring; Optical attenuators; Optical fiber couplers; Optical fiber polarization; Optical polymers; Optical waveguides; Regulators; Silicon; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.811405
