Table 1 Indium Phosphide (InP) parameters used for the solution of the coupled equations

From: Injection-locking dynamics of two self-pulsing nanocavities optically coupled on photonic integrated circuit

Name

Value

Dimension

Description

Reference

\({n}_{0}\)

3.1538

-

refractive index

55

\({\tau }_{{ph}}\)

2.0899 × 1011

2.0901 × 1011

s

photon lifetime in: cavity #1

cavity #2

Calculated

\({\eta }_{{lin}}\)

0.1

-

linear absorption losses to total cavity losses ratio

41

\({n}_{2}\)

2.00 × 1017

m2 W1

Kerr coefficient

56

\({\beta }_{2}\)

1.46 × 1010

m W1

TPA coefficient

56

\({\sigma }_{{FCA}}\)*

1.90 × 1021

m2

FCA coefficient

56

Veff

1.92 × 1018

m3

effective volume of the 6th optical mode

COMSOL®

VTPA

1.09 × 1018

m3

effective volume of TPA effect

COMSOL®

VFCA

8.80 × 1019

m3

effective volume of FCA effect

COMSOL®

ρInP

4810

kg m3

InP mass density

-

cInP

310

J kg1 K1

InP constant-pressure specific heat capacity

-

Kθ

2.00 × 1004

K1

TO coefficient

57

\({\tau }_{{car}}\)

5.00 × 1010

s

carrier’s lifetime

56

\({\tau }_{{th}}\)**

5.00 × 1007

s

thermal decay time

14

Q

25,000

-

Quality factor

Experiments

\(\lambda\)res

1573.875 × 1009

1574.036 × 1009

m

Resonant wavelength for: cavity #1

cavity #2

Experiments

  1. *To better reproduce the experimental results, σFCA is one of the two parameters that will be used as fitting parameter. In the table is reported the value found in literature but, for the simulations, σFCA = 0.95 × 1021 m2 has been used. This change can be due to the different geometric dimensions of the InP since we are using a 1D PhC instead of a 1 mm thick slab of InP as in the reference paper.
  2. **The thermal decay time is the parameter used to best fit the modulation frequency since it is the lifetime of the slow oscillating process so the one which strongly impacts the oscillation period. Its value is set to 320 ns instead of the reference paper where 500 ns is used.