We demonstrate two new approaches to broad-range tuning of fiber Bragg grating devices: amplified thermal tuning and programmable magnetic tuning. The thermal-strain tuning approach employs a novel configuration to amplify thermally induced wavelength shifts by use of a negative thermal-expansion component. The magnetic-strain tuning approach allows programmable and latchable wavelength shifts through magnetic interactions that induce controlled strain on the fiber grating. The advantages and disadvantages of these two techniques are contrasted.
© 1999 Optical Society of America
[Optical Society of America ]
H. Mavoori, S. Jin, R. P. Espindola, and T. A. Strasser, "Enhanced thermal and magnetic actuations for broad-range tuning of fiber Bragg grating based reconfigurable add drop devices," Opt. Lett. 24, 714-716 (1999)