Table 2 Characteristics of the major tunable crossing types

From: Asymptotically fault-tolerant programmable photonics

 

Complexity

Features

 

Passives

Actives

Area

   

MZI

2

2

1.0

S

  

S-MZI

2

2

0.8

   

3-MZI

3

2

1.2

S

 

(P)

MZI+X

3

2

1.2

S

B

(P)

Suzuki

3

3

1.5

S

 

P

Miller

4

4

2.0

S

 

P

  1. S self-configuration, B broadband, (P) asymptotically perfect, P perfect.
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