Multi-Wavelength Photometric and Polarimetric Observations of the Outburst of 3C 454.3 in 2009 December

This work was partly supported by a Grand-in-Aid from the Ministry of Education, Culture, Sports, Science, and Technology of Japan (22540252,). This research has made use of data from the University of Michigan Radio Astronomy Observatorywhich has been supported by the University of Michigan and by a series of grants from the National Science Foundation, most recently AST-0607523. The Submillimeter Arrayis a joint project between the Smithsonian Astrophysical Observatoryand the Academia Sinica Institute of Astronomyand Astrophysicsand is funded by the Smithsonian Institution and the Academia Sinica. M. Sasada and M. Yamanaka have been supported by the JSPS Research Fellowship for Young Scientists.