Data Sheet

2

Characteristics

Parameter

Conditions

Min

Typ

Max

Unit

Module and Modulator Parameters

Case temperature

[Tcase]

External temperature of Tx case

[1]

-5

75

°C

Modulated output power

EOL over temperature

4

7

dBm

Power variation over case temperature

[2]

-1.3

0.5

dB

AC extinction ratio

EOL, 10.709Gb/s

[3]

10

11.5

dB

Dispersion penalty over temperature

10.709Gb/s, EOL

[4]

2

dB

Data bar arm bias

<9mA arm bias current

-4

-1.1

V

Data arm bias

<9mA arm bias current

-2.2

-0.5

V

Modulation drive voltage

per arm, pk-pk, 10.709Gb/s

[5]

1.8

2.7

V

Optical rise time, fall time

20% - 80%

35

ps

Tolerable link optical reflection

[6]

-14

dB

Output optical return loss

[7]

20

dB

Optical crossing level (Mode 1)

[8]

48

50

52

%

Optical crossing level (Mode 2)

[9]

40

60

%

Modulator bandwidth

S21, -3dB

10

GHz

Using the LMC10NEG

The LMC10NEG can be used in two ways:

Mode 1.

With dynamic modulator arm DC bias control where the MZ bias control tap is used in a control loop to optimise the optical

crossing point over life. Details of operating in this mode are given in applications note AN0136.

Mode 2.

Fixed modulator arm DC bias where the tap function is not used. Backwards compatible with the LMC10NEH device.