Photonic scanning receiver using an electrically tuned fiber Bragg grating.
A 5-cm-long electrically tuned fiber Bragg grating is used to filter a microwave signal on an optical carrier at 1.55 mum. A chirped distributed-feedback structure is employed, with a transmission bandwidth of 54 MHz and relative optical carrier rejection of >30 dB for rf frequencies >2 GHz. The rapid monotonic sweep of the Bragg wavelength is translated into a fast-frequency sweep for rf analysis.
Rugeland
P
P
Department of Fiber Photonics, Acreo AB, Electrum 229, 164 40 Stockholm, Sweden.
Yu
Z
Z
Sterner
C
C
Tarasenko
O
O
Tengstrand
G
G
Margulis
W
W