Figure 35: Examples of the sum quantum noise power (double-sided) spectral densities of the
resonance-tuned interferometers with frequency-dependent squeezing and/or homodyne angles. Left:
no optical losses, right: with optical losses, . ‘Ordinary’: no squeezing, .
‘Squeezed’: 10 dB squeezing, , (these two plots are provided for comparison).
Dots [pre-filtering, Eq. (403)]: 10 dB squeezing, , frequency-dependent squeezing angle.
Dashes [post-filtering, Eq. (408)]: 10 dB squeezing, , frequency-dependent homodyne angle.
Dash-dots [pre- and post-filtering, Eq. (410)]: 10 dB squeezing, frequency-dependent squeeze and
homodyne angles. For all plots, and .
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