title: Wide-range tuning of polymer microring resonators by the photobleaching of CLD-1 chromophores.
abstract: We present a simple and effective method for the postfabrication trimming of optical microresonators. We photobleach CLD-1 chromophores to tune the resonance wavelengths of polymer microring resonator optical notch filters. A maximum wavelength shift of -8.73 nm is observed. The resonators are fabricated with a soft-lithography molding technique and have an intrinsic Q value of 2.6 x 10(4) and a finesse of 9.3. The maximum extinction ratio of the resonator filters is -34 dB, indicating that the critical coupling condition has been satisfied.
authors.affiliation: Department of Electrical Engineering and Department of Applied Physics, California Institute of Technology, MC 136-93, Pasadena, California 91125, USA. poon@caltech.edu
authors.forename: Joyce K S
authors.initials: JK
authors.lastname: Poon
authors.forename: Yanyi
authors.initials: Y
authors.lastname: Huang
authors.forename: George T
authors.initials: GT
authors.lastname: Paloczi
authors.forename: Amnon
authors.initials: A
authors.lastname: Yariv
authors.forename: Cheng
authors.initials: C
authors.lastname: Zhang
authors.forename: Larry R
authors.initials: LR
authors.lastname: Dalton