Table 2 The insertion loss of the optical devices.

From: Experimental demonstration of multiparty quantum secret sharing and conference key agreement

Optical devices

Filter

PC

1/99 BS

PBS

PM

AM

Coupling efficiency

ADM

AWG 48-CH

Insertion loss (dB)

0.35

0.1

0.05

0.1

0.05

0.25

0.2

0.35

3.5

  1. Filter fiber optical filter, PC fiber polarization controller, 1/99 BS free-space 1/99 beam splitter, PBS free-space polarization beam splitter, PM free-space phase modulator, AM free-space amplitude modulator biased at 96% transmission point, Coupling efficiency the coupling efficiency of fiber to free-space (free-space to fiber), AWG 48-CH arrayed waveguide grating of 48-channel.
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