Double component long period waveguide grating filter in sol-gel material.
An efficient, tunable Long Period Waveguide Grating (LPWG) filter based on a new hybrid sol-gel material is demonstrated. The LPWG exhibits an attenuation of -22 dB and a high temperature sensitivity of ~3.3 nm/ degrees C. At room temperature the device shows an almost polarization independent wavelength. We took the advantage of the UV-curable sol-gel materials and used soft lithography to demonstrate a simple approach of integrating two LPWG filters on the same structure. The gratings were fabricated on the top and on the bottom of the same ridge waveguide and operate at communication wavelengths of 1550 and 1310 nm, respectively.
Moujoud
Abderrafia
A
Kim
Hyun Jae
HJ
Kang
Sung Ho
SH
Oh
Gyong-Jin
GJ
Kim
Woo-Soo
WS
Bae
Byeong-Soo
BS
Shin
Sang-Yung
SY