Abstract
This paper covers the tilted-mirror interferometer, which is an improvement
of the similar configuration with parallel mirrors in several important parameters,
such as: rejection ratio increase from 26 to 45 dB, the slopes of the transmission
peaks increases from 4 to 40 dB/nm, and decreases several times the bandwidth
at 3 dB. All the other parameters of nonmodulated light, such as 240-nm tuning
range, tuning speed of 2 $\mu$s/nm,
tuning accuracy of 1 pm, 1-dB insertion loss, 0.2-dB flatness, 0.15-dB polarization-dependent
loss are the same as in the configuration with parallel mirrors. The experiments
have shown that the version with tilted mirrors has 80-nm/$\mu$m tuning sensitivity to the gap change, slightly
better than the configuration with the parallel mirrors.
© 2008 IEEE
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