Highly efficient optical power transfer to whispering-gallery modes by use of a symmetrical dual-coupling configuration

Optics Letters

Volumn 25, Issue 4, 2000, Pages 260-262

  Cai, Ming ^a   Vahala, Kerry ^a  

^a California Institute of Technology   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001197957     PISSN: 01469592     EISSN: None     Source Type: Journal    
DOI: 10.1364/OL.25.000260     Document Type: Article

References (10)

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9. With this assumption, we approximate the coupler as nearly lossless so that reciprocity and energy-conservation relations can be used to relate the various coupling coefficients. The validity of this assumption is affirmed by the experimental results.
10. Not all devices tested behaved in this manner. Scattering at the taper-sphere coupling is expected in general to be mode dependent and to provide the most significant source of non-coupling-related loss for WGM's. Scattering is believed to be the dominant source of non-coupling-related loss in the current experiments.