Microsphere-based channel dropping filter with an integrated photodetector

作者：Bilici T; Isci S; Kurt A; Serpenguzel A^*

来源：IEEE Photonics Technology Letters, 2004, 16(2): 476-478.

DOI：10.1109/LPT.2003.821257

• channel dropping filter
• integrated optoelectronics
• microsphere resonator
• morphology-dependent resonances
• whispering gallery modes

Morphology-dependent resonances of dielectric microspheres are used for polarization-insensitive optical channel dropping from an optical fiber half coupler to a silicon photodetector in the M-band. The dropped channels are observed both in the elastic scattering and the transmission spectra. The highest quality factor morphology-dependent resonances have repetitive channel separations of 0.14 nm and linewidths of 0.06 nm. The filter drops approximately 10% (0.5 dB) of the power at the resonance wavelength. The power detected by the photodiode is estimated to be 3.5% of the power in the fiber.

• 出版日期2004-2