Optical delay interferometer based on phase shifted fiber Bragg grating with optically controllable phase shifter.
We propose a novel optical delay interferometer (ODI) with an optically controllable phase shifter. The proposed interferometer is implemented by using a phase shifted fiber Bragg grating and an Yb(3+)/Al(3+) co-doped optical fiber. The phase of the delayed optical signal is linearly controlled by adjusting the induced pumping power of a laser diode at 976 nm. Polarization dependent loss, polarization dependent center wavelength shift and temperature induced center wavelength shift of the ODI are 0.044 dB, 6 pm, and 9.8 pm/ degrees C, respectively.
Kim
Tae-Young
TY
Hanawa
Masanori
M
Kim
Sun-Jong
SJ
Hann
Swook
S
Kim
Yune Hyoun
YH
Han
Won-Taek
WT
Park
Chang-Soo
CS