Loss Budget Analyzer - CV Squeezer Suite

Squeezer Source

On-chip Squeezing (dB): 10

Escape Efficiency: 0.85

Coupling Losses

Chip-Fiber Coupling (dB): 1.5

Fiber Splices (dB): 0.3

Propagation

Fiber Length (m): 2

Fiber Loss (dB/km): 0.2

Filter Loss (dB): 0.5

Detection

Detector QE: 0.75

Mode Matching: 0.95

10.0

Source (dB)

6.8

Detected (dB)

3.2

Lost (dB)

68%

Total η

Squeezing Degradation Waterfall

Efficiency Breakdown

Loss Budget Table

Component	Loss (dB)	Efficiency	Cumulative η	Squeezing (dB)

Key Insight

Detected squeezing follows: V_det = η × V_squeezed + (1-η)

Each loss mechanism mixes vacuum noise with the squeezed state, irreversibly degrading the quantum correlations. The escape efficiency and detector QE are typically the largest contributors to squeezing loss.