Characterization of waveguide loss using distributed Bragg reflectors
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We propose and demonstrate a method to characterize waveguide loss using the spectral response of combinations of distributed Bragg reflectors. The method is independent of coupling efficiency and waveguide dispersion and does not require the introduction of bending loss into the device.
KeywordsCavity Length Output Coupling Coupling Efficiency Null Point Distribute Bragg Reflector
This work was supported by the National Science Foundation (NSF), the NSF Engineering Research Center for Integrated Access Networks, Defense Advanced Research Projects Agency, and the Cymer Corporation. The authors would like to thank the Nano3 staff at UCSD for support during sample fabrication, and C. Hennessey for logistical support.
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