C-Band 40 GHz QPSK (IQ) Modulator

Parameter

Operating Conditions ⁽¹⁾

Min

Typ

Max

Unit

Optical

Operating Wavelength Range

-

1525

-

1570

nm

Insertion Loss, IL ⁽²⁾

EOL, - 5 ~ + 75 ℃, over C-Band

-

5.0

7.0

dB

Phase-MZI Optical Extinction Ratio

Measured @ DC

24

-

-

dB

RF-MZI Optical Extinction Ratio

Measured @ DC

24

29

-

dB

PER

-

20

-

-

dB

Optical Return Loss, RL

Input & Output

40

-

-

dB

Electrical RF Ports

RF-MZI V_π

@ 1 kHz

-

5.0

7.0

V

RF-MZO - 3 dB E/O Bandwidth

wrt. 2 GHz

20

23

-

GHz

RF-MZI S₂₁ Flatness

300 MHz - 20 GHz

- 1

-

1

dB

Amplitude difference between RF-MZIs (Difference between S₂₁s)

-

- 1

-

1

dB

RF Delay between RF-MZIs

-

- 5

-

5

ps

RF-MZI Electrical Return Loss S11

40 MHz - 17 GHz

10

12

-

dB

17 GHz - 30 GHz

8

10

-

Electrical Bias Ports ⁽⁴⁾

RF MZI Bias V_π Voltage

@ 1 kHz

-

7

8

V

Phase MZI Bias V_π Voltage

@ 1 kHz

-

7

8

V

RF and Phase MZI Bias V_π Voltage variation over Wavelength

C-Band wrt 1550 nm

- 5

-

5

%

Bias port impedance

@ DC

1

-

-

MΩ

Monitor Photodiode ⁽⁵⁾

Responsivity ⁽⁶⁾

-

20

-

120

mA/W

Linearity

-

- 10

-

10

%

Phase Error ⁽⁷⁾⁽⁸⁾

PD is not inverting

- 5

-

5

Degree