7

2.5 GB/S CWDM SFP TRANSCEIVER

Optical Specifications

Parameter

40 km (PIN) at OC-48

80 km (APD) at OC-48

Minimum

0 dBm

0 dBm

Typical

1.5 dBm

1.5 dBm

Maximum

4 dBm

4 dBm

Minimum

0.5 dBm

0.5 dBm

Typical

1.5 dBm

1.5 dBm

Maximum

3 dBm

3 dBm

TX operating wavelength

Minimum

-6.5 nm

-6.5 nm

Typical

Center

Center

Maximum

6.5 nm

6.5 nm

Typical

0.3 nm

0.3 nm

Maximum

1 nm

1 nm

Minimum

30 dB

30 dB

Minimum

9.0 dB

9 dB

Typical

10.0 dB

10 dB

Maximum

11.5 dB

11.5 dB

Minimum

8.2 dB

8.2 dB

Maximum

12.0 dB

12.0 dB

Maximum

200 ps

200 ps

Eye mask of optical output

Compliant with GR-253

Compliant with GR-253

and ITU-T G.957

and ITU-T G.957

Eye mask margin (filtered)

Minimum

10%

10%

Typical

15%

15%

Maximum

Maximum

Power output with transmitter disabled

Typical

-50 dBm

-50 dBm

Maximum

-40 dBm

-40 dBm

Minimum

-21 dBm

-30 dBm

Typical

-23 dBm

-32 dBm

Minimum

-18 dBm

-28 dBm

Maximum received optical power

Minimum

0 dBm

-8 dBm

Link status response time

Minimum

3 µs

3 µs

Typical

50 µs

50 µs

Maximum

100 µs

100 µs

Optical path penalty

Maximum

1.5 dB

2.5 dB

Dispersion

Maximum

1000 ps/nm

1600 ps/nm

Receiver reflectance

Maximum

-27 dB

-27 dB

Minimum optical return loss

Minimum

-24 dB

-24 dB

BER floor

Maximum

Reflect into Tx for <1 dB degradation at the receiver

Maximum

-24 dB

-24 dB

Bit rate

155 to 2700 Mb/s

155 to 2700 Mb/s

1. Fiber coupled power, connector repeatability is ±1 dB.

2. Full spectral width measured 20 dB down from the central wavelength peak under fully modulated conditions (for DFB lasers).

3. Ratio of the average output power in the dominant longitudinal mode to the power in the most significant side mode under fully modulated conditions.

4. Ratio of logic 1 output power to logic 0 output power under fully modulated conditions. When operated at data rates below 1 Gb/s, the maximum extinction ratio

specification is increased by 2 dB.

5. Using an unfiltered measurement.

6. Formatted OC-48 pattern with scrambled PRBS 23 payload using Agilent Omni BER as the optical source driving an external OC-48 optical receiver with CDR. The

differential data outputs of this optical receiver with CDR. The differential dataoutputs of this optical receiver are used as the electrical inputs for the CT2 transmitter which

optically drives the Omni BER receiver input.