V23848-H18-C56

V23848-H19-C56

Technical Data

Data Sheet

10

2004-06-25

Optical Characteristics (

V

Parameter

Symbol

Values

Unit

min.

typ.

max.

Transmitter

Launched Power (Average)

1)

1)

Into single mode fiber, 9 µm diameter.

P

O

–15

–8

dBm

Extinction Ratio (Dynamic)

ER

8.2

dB

Center Wavelength

λ

C

1274

1356

nm

Spectral Width (rms)

σ

I

2.5

nm

Tx Disable Laser Output Power

P

O-TxDis

–50

dBm

Optical Eye Mask

2)

2)

Transmitter eye is according to ITU-T G.957 S-4.1 and SONET OC-12 IR-1. Measured with 20% eye mask

margin.

According to standards

Jitter Generation (pk-pk)

3)

3)

The transceiver is specified to meet the SONET/SDH Jitter performance as outlined in ITU-T G.958 and

Telcordia GR-253. Jitter Generation is defined as the amount of jitter that is generated by the transceiver. The

Jitter Generation specifications are referenced to the optical OC-12 signals. If no or minimum jitter is applied

to the electrical inputs of the transmitter, then Jitter Generation can simply be defined as the amount of jitter

on the Tx optical output. The SONET specifications for Jitter Generation are 0.01 UI rms, maximum and 0.1

UI pk-pk, maximum. For SDH, 10 mUI rms, maximum. Both are measured with a 12 kHz - 5 MHz filter in line.

A UI is a Unit Interval, which is equivalent to one bit slot.

J

pk-pk Tx

0.055

0.065

UI

Jitter Generation (rms)

3)

J

rms Tx

0.003

0.0045

UI

Rise Time

4)

4)

Values are 20% - 80%, filtered and measured at nominal data rate.

t

R-Tx

40

ps

Fall Time

4)

t

F-Tx

150

ps

Receiver

5)

5)

Receiver characteristics are measured with a worst case reference laser.

Saturation (Average Power)

6)

6)

At 9 dB Extinction Ratio of the incoming signal.

P

SAT

–8

dBm

Sensitivity (Average Power)

7)

@ 622 Mbit/s

@ 155 Mbit/s

@ 125 Mbit/s

P

IN

–30.5

–31.5

–31.5

–28

–28

–28

dBm

LOS Assert Level

8)

P

LOSA

–37

dBm

LOS Deassert Level

8)

P

LOSD

–28

dBm

LOS Hysteresis

8)

P

LOSA

–

P

LOSD

0.5

3

dB

Input Center Wavelength

λ

C

1260

1580

nm

Path Penalty

Rx

PEN

1dB