@inproceedings { Wang:15, title = {Apodized Focusing Fully Etched Sub-wavelength Grating Couplers With Ultra-low Reflections}, journal = {Conference on Lasers and Electro-Optics}, year = {2015}, month = {05/2015}, pages = {SM1I.6}, publisher = {Optical Society of America}, organization = {Optical Society of America}, type = {inproceedings}, abstract = {We experimentally demonstrated apodized focusing fully etched sub-wavelength grating couplers for the transverse electric (TE) mode. An insertion loss of 4.2 dB, 1-dB bandwidth of 36 nm, and back reflection of -24 dB have been obtained.}, keywords = {Gratings; Effective medium theory ; Subwavelength structures}, URL = {http://www.osapublishing.org/abstract.cfm?URI=CLEO_SI-2015-SM1I.6}, author = {Yun Wang and Han Yun and Zeqin Lu and Richard Bojko and Fan Zhang and Michael Caverley and Nicolas A. F. Jaeger and Lukas Chrostowski } }